[{"status":"public","user_id":"15911","volume":93,"publisher":"AIP Publishing","_id":"59695","quality_controlled":"1","citation":{"bibtex":"@article{Hövel_Gerhardt_Hofmann_Lo_Ludwig_Reuter_Wieck_Schuster_Wende_Keune_et al._2008, title={Room temperature electrical spin injection in remanence}, volume={93}, DOI={<a href=\"https://doi.org/10.1063/1.2957469\">10.1063/1.2957469</a>}, number={2}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Hövel, S. and Gerhardt, N. C. and Hofmann, M. R. and Lo, F.-Y. and Ludwig, A. and Reuter, D. and Wieck, A. D. and Schuster, E. and Wende, H. and Keune, W. and et al.}, year={2008} }","ama":"Hövel S, Gerhardt NC, Hofmann MR, et al. Room temperature electrical spin injection in remanence. <i>Applied Physics Letters</i>. 2008;93(2). doi:<a href=\"https://doi.org/10.1063/1.2957469\">10.1063/1.2957469</a>","short":"S. Hövel, N.C. Gerhardt, M.R. Hofmann, F.-Y. Lo, A. Ludwig, D. Reuter, A.D. Wieck, E. Schuster, H. Wende, W. Keune, O. Petracic, K. Westerholt, Applied Physics Letters 93 (2008).","chicago":"Hövel, S., N. C. Gerhardt, M. R. Hofmann, F.-Y. Lo, A. Ludwig, D. Reuter, A. D. Wieck, et al. “Room Temperature Electrical Spin Injection in Remanence.” <i>Applied Physics Letters</i> 93, no. 2 (2008). <a href=\"https://doi.org/10.1063/1.2957469\">https://doi.org/10.1063/1.2957469</a>.","ieee":"S. Hövel <i>et al.</i>, “Room temperature electrical spin injection in remanence,” <i>Applied Physics Letters</i>, vol. 93, no. 2, 2008, doi: <a href=\"https://doi.org/10.1063/1.2957469\">10.1063/1.2957469</a>.","apa":"Hövel, S., Gerhardt, N. C., Hofmann, M. R., Lo, F.-Y., Ludwig, A., Reuter, D., Wieck, A. D., Schuster, E., Wende, H., Keune, W., Petracic, O., &#38; Westerholt, K. (2008). Room temperature electrical spin injection in remanence. <i>Applied Physics Letters</i>, <i>93</i>(2). <a href=\"https://doi.org/10.1063/1.2957469\">https://doi.org/10.1063/1.2957469</a>","mla":"Hövel, S., et al. “Room Temperature Electrical Spin Injection in Remanence.” <i>Applied Physics Letters</i>, vol. 93, no. 2, AIP Publishing, 2008, doi:<a href=\"https://doi.org/10.1063/1.2957469\">10.1063/1.2957469</a>."},"date_updated":"2026-02-25T09:38:49Z","publication_status":"published","intvolume":"        93","article_type":"original","year":"2008","title":"Room temperature electrical spin injection in remanence","author":[{"full_name":"Hövel, S.","first_name":"S.","last_name":"Hövel"},{"first_name":"N. C.","last_name":"Gerhardt","full_name":"Gerhardt, N. C."},{"last_name":"Hofmann","first_name":"M. R.","full_name":"Hofmann, M. R."},{"first_name":"F.-Y.","last_name":"Lo","full_name":"Lo, F.-Y."},{"full_name":"Ludwig, A.","last_name":"Ludwig","first_name":"A."},{"last_name":"Reuter","first_name":"D.","full_name":"Reuter, D."},{"first_name":"A. D.","last_name":"Wieck","full_name":"Wieck, A. D."},{"full_name":"Schuster, E.","first_name":"E.","last_name":"Schuster"},{"first_name":"H.","last_name":"Wende","full_name":"Wende, H."},{"first_name":"W.","last_name":"Keune","full_name":"Keune, W."},{"last_name":"Petracic","first_name":"O.","full_name":"Petracic, O."},{"first_name":"K.","last_name":"Westerholt","full_name":"Westerholt, K."}],"publication_identifier":{"issn":["0003-6951","1077-3118"]},"doi":"10.1063/1.2957469","language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"We demonstrate electrical spin injection from ferromagnetic Fe/Tb multilayer structures with remanent perpendicular magnetization into GaAs-based light-emitting diodes at room temperature. Using a reverse-biased Schottky contact and a MgO tunnel contact, respectively, we achieve spin injection at remanence. The maximum degree of circular polarization of the emitted light is 3% at room temperature."}],"issue":"2","publication":"Applied Physics Letters","type":"journal_article","date_created":"2025-04-25T10:28:29Z"},{"quality_controlled":"1","citation":{"short":"H. Glöckner, Glasgow Mathematical Journal 50 (2008) 271–288.","chicago":"Glöckner, Helge. “Ultrametric and Non-Locally Convex Analogues of the General Curve Lemma of Convenient Differential Calculus.” <i>Glasgow Mathematical Journal</i> 50, no. 2 (2008): 271–288. <a href=\"https://doi.org/10.1017/S0017089508004199\">https://doi.org/10.1017/S0017089508004199</a>.","apa":"Glöckner, H. (2008). Ultrametric and non-locally convex analogues of the general curve Lemma of convenient differential calculus. <i>Glasgow Mathematical Journal</i>, <i>50</i>(2), 271–288. <a href=\"https://doi.org/10.1017/S0017089508004199\">https://doi.org/10.1017/S0017089508004199</a>","ieee":"H. Glöckner, “Ultrametric and non-locally convex analogues of the general curve Lemma of convenient differential calculus,” <i>Glasgow Mathematical Journal</i>, vol. 50, no. 2, pp. 271–288, 2008, doi: <a href=\"https://doi.org/10.1017/S0017089508004199\">10.1017/S0017089508004199</a>.","ama":"Glöckner H. Ultrametric and non-locally convex analogues of the general curve Lemma of convenient differential calculus. <i>Glasgow Mathematical Journal</i>. 2008;50(2):271–288. doi:<a href=\"https://doi.org/10.1017/S0017089508004199\">10.1017/S0017089508004199</a>","bibtex":"@article{Glöckner_2008, title={Ultrametric and non-locally convex analogues of the general curve Lemma of convenient differential calculus}, volume={50}, DOI={<a href=\"https://doi.org/10.1017/S0017089508004199\">10.1017/S0017089508004199</a>}, number={2}, journal={Glasgow Mathematical Journal}, author={Glöckner, Helge}, year={2008}, pages={271–288} }","mla":"Glöckner, Helge. “Ultrametric and Non-Locally Convex Analogues of the General Curve Lemma of Convenient Differential Calculus.” <i>Glasgow Mathematical Journal</i>, vol. 50, no. 2, 2008, pp. 271–288, doi:<a href=\"https://doi.org/10.1017/S0017089508004199\">10.1017/S0017089508004199</a>."},"volume":50,"user_id":"178","_id":"64685","page":"271–288","status":"public","department":[{"_id":"10"},{"_id":"87"},{"_id":"93"}],"type":"journal_article","keyword":["26E15","26E20","26E30","46A16","46S10"],"date_created":"2026-02-26T11:22:06Z","issue":"2","publication":"Glasgow Mathematical Journal","doi":"10.1017/S0017089508004199","language":[{"iso":"eng"}],"intvolume":"        50","article_type":"original","date_updated":"2026-02-27T08:19:56Z","publication_identifier":{"issn":["0017-0895"]},"author":[{"id":"178","full_name":"Glöckner, Helge","first_name":"Helge","last_name":"Glöckner"}],"year":"2008","title":"Ultrametric and non-locally convex analogues of the general curve Lemma of convenient differential calculus"},{"citation":{"bibtex":"@article{Glöckner_2008, title={Solutions to open problems in Neeb’s recent survey on infinite-dimensional Lie groups}, volume={135}, DOI={<a href=\"https://doi.org/10.1007/s10711-008-9263-z\">10.1007/s10711-008-9263-z</a>}, journal={Geometriae Dedicata}, author={Glöckner, Helge}, year={2008}, pages={71–86} }","ama":"Glöckner H. Solutions to open problems in Neeb’s recent survey on infinite-dimensional Lie groups. <i>Geometriae Dedicata</i>. 2008;135:71–86. doi:<a href=\"https://doi.org/10.1007/s10711-008-9263-z\">10.1007/s10711-008-9263-z</a>","mla":"Glöckner, Helge. “Solutions to Open Problems in Neeb’s Recent Survey on Infinite-Dimensional Lie Groups.” <i>Geometriae Dedicata</i>, vol. 135, 2008, pp. 71–86, doi:<a href=\"https://doi.org/10.1007/s10711-008-9263-z\">10.1007/s10711-008-9263-z</a>.","chicago":"Glöckner, Helge. “Solutions to Open Problems in Neeb’s Recent Survey on Infinite-Dimensional Lie Groups.” <i>Geometriae Dedicata</i> 135 (2008): 71–86. <a href=\"https://doi.org/10.1007/s10711-008-9263-z\">https://doi.org/10.1007/s10711-008-9263-z</a>.","short":"H. Glöckner, Geometriae Dedicata 135 (2008) 71–86.","ieee":"H. Glöckner, “Solutions to open problems in Neeb’s recent survey on infinite-dimensional Lie groups,” <i>Geometriae Dedicata</i>, vol. 135, pp. 71–86, 2008, doi: <a href=\"https://doi.org/10.1007/s10711-008-9263-z\">10.1007/s10711-008-9263-z</a>.","apa":"Glöckner, H. (2008). Solutions to open problems in Neeb’s recent survey on infinite-dimensional Lie groups. <i>Geometriae Dedicata</i>, <i>135</i>, 71–86. <a href=\"https://doi.org/10.1007/s10711-008-9263-z\">https://doi.org/10.1007/s10711-008-9263-z</a>"},"quality_controlled":"1","_id":"64684","page":"71–86","volume":135,"user_id":"178","status":"public","date_created":"2026-02-26T11:20:56Z","department":[{"_id":"10"},{"_id":"87"},{"_id":"93"}],"type":"journal_article","keyword":["22E65"],"publication":"Geometriae Dedicata","language":[{"iso":"eng"}],"doi":"10.1007/s10711-008-9263-z","publication_identifier":{"issn":["0046-5755"]},"author":[{"full_name":"Glöckner, Helge","last_name":"Glöckner","first_name":"Helge","id":"178"}],"title":"Solutions to open problems in Neeb’s recent survey on infinite-dimensional Lie groups","year":"2008","article_type":"original","intvolume":"       135","date_updated":"2026-02-27T08:21:15Z"},{"issue":"4","publication":"Mathematische Zeitschrift","department":[{"_id":"10"},{"_id":"87"},{"_id":"93"}],"type":"journal_article","keyword":["22E20","22E60"],"date_created":"2026-02-26T11:19:31Z","intvolume":"       260","article_type":"original","date_updated":"2026-02-27T08:21:58Z","publication_identifier":{"issn":["0025-5874"]},"author":[{"id":"178","full_name":"Glöckner, Helge","last_name":"Glöckner","first_name":"Helge"}],"title":"Contractible Lie groups over local fields","year":"2008","doi":"10.1007/s00209-008-0305-x","language":[{"iso":"eng"}],"quality_controlled":"1","citation":{"ama":"Glöckner H. Contractible Lie groups over local fields. <i>Mathematische Zeitschrift</i>. 2008;260(4):889–904. doi:<a href=\"https://doi.org/10.1007/s00209-008-0305-x\">10.1007/s00209-008-0305-x</a>","bibtex":"@article{Glöckner_2008, title={Contractible Lie groups over local fields}, volume={260}, DOI={<a href=\"https://doi.org/10.1007/s00209-008-0305-x\">10.1007/s00209-008-0305-x</a>}, number={4}, journal={Mathematische Zeitschrift}, author={Glöckner, Helge}, year={2008}, pages={889–904} }","mla":"Glöckner, Helge. “Contractible Lie Groups over Local Fields.” <i>Mathematische Zeitschrift</i>, vol. 260, no. 4, 2008, pp. 889–904, doi:<a href=\"https://doi.org/10.1007/s00209-008-0305-x\">10.1007/s00209-008-0305-x</a>.","short":"H. Glöckner, Mathematische Zeitschrift 260 (2008) 889–904.","chicago":"Glöckner, Helge. “Contractible Lie Groups over Local Fields.” <i>Mathematische Zeitschrift</i> 260, no. 4 (2008): 889–904. <a href=\"https://doi.org/10.1007/s00209-008-0305-x\">https://doi.org/10.1007/s00209-008-0305-x</a>.","apa":"Glöckner, H. (2008). Contractible Lie groups over local fields. <i>Mathematische Zeitschrift</i>, <i>260</i>(4), 889–904. <a href=\"https://doi.org/10.1007/s00209-008-0305-x\">https://doi.org/10.1007/s00209-008-0305-x</a>","ieee":"H. Glöckner, “Contractible Lie groups over local fields,” <i>Mathematische Zeitschrift</i>, vol. 260, no. 4, pp. 889–904, 2008, doi: <a href=\"https://doi.org/10.1007/s00209-008-0305-x\">10.1007/s00209-008-0305-x</a>."},"status":"public","volume":260,"user_id":"178","_id":"64683","page":"889–904"},{"extern":"1","quality_controlled":"1","citation":{"chicago":"Fechner, Sabine, and Elke Sumfleth. “Collaborative Concept Mapping in Context-Oriented Chemistry Learning.” In <i>Concept Mapping: Connecting Educators. Proceedings of the Third International Conference on Concept Mapping, Tallinn, Estonia &#38; Helsinki, Finland</i>, edited by A. J. Canas, P. Reiska, M. Ahlberg, and J. Novak, 2008.","short":"S. Fechner, E. Sumfleth, in: A.J. Canas, P. Reiska, M. Ahlberg, J. Novak (Eds.), Concept Mapping: Connecting Educators. Proceedings of the Third International Conference on Concept Mapping, Tallinn, Estonia &#38; Helsinki, Finland, 2008.","ama":"Fechner S, Sumfleth E. Collaborative concept mapping in context-oriented chemistry learning. In: Canas AJ, Reiska P, Ahlberg M, Novak J, eds. <i>Concept Mapping: Connecting Educators. Proceedings of the Third International Conference on Concept Mapping, Tallinn, Estonia &#38; Helsinki, Finland</i>. ; 2008.","bibtex":"@inproceedings{Fechner_Sumfleth_2008, title={Collaborative concept mapping in context-oriented chemistry learning}, booktitle={Concept Mapping: Connecting Educators. Proceedings of the Third International Conference on Concept Mapping, Tallinn, Estonia &#38; Helsinki, Finland}, author={Fechner, Sabine and Sumfleth, Elke}, editor={Canas, A. J. and Reiska, P. and Ahlberg, M. and Novak, J.}, year={2008} }","mla":"Fechner, Sabine, and Elke Sumfleth. “Collaborative Concept Mapping in Context-Oriented Chemistry Learning.” <i>Concept Mapping: Connecting Educators. Proceedings of the Third International Conference on Concept Mapping, Tallinn, Estonia &#38; Helsinki, Finland</i>, edited by A. J. Canas et al., 2008.","apa":"Fechner, S., &#38; Sumfleth, E. (2008). Collaborative concept mapping in context-oriented chemistry learning. In A. J. Canas, P. Reiska, M. Ahlberg, &#38; J. Novak (Eds.), <i>Concept Mapping: Connecting Educators. Proceedings of the Third International Conference on Concept Mapping, Tallinn, Estonia &#38; Helsinki, Finland</i>.","ieee":"S. Fechner and E. Sumfleth, “Collaborative concept mapping in context-oriented chemistry learning,” in <i>Concept Mapping: Connecting Educators. Proceedings of the Third International Conference on Concept Mapping, Tallinn, Estonia &#38; Helsinki, Finland</i>, 2008."},"publication":"Concept Mapping: Connecting Educators. Proceedings of the Third International Conference on Concept Mapping, Tallinn, Estonia & Helsinki, Finland","department":[{"_id":"386"}],"type":"conference","date_created":"2025-12-13T23:06:41Z","date_updated":"2025-12-13T23:11:06Z","author":[{"first_name":"Sabine","last_name":"Fechner","orcid":"0000-0001-5645-5870","full_name":"Fechner, Sabine","id":"54823"},{"first_name":"Elke","last_name":"Sumfleth","full_name":"Sumfleth, Elke"}],"year":"2008","status":"public","title":"Collaborative concept mapping in context-oriented chemistry learning","editor":[{"full_name":"Canas, A. J.","last_name":"Canas","first_name":"A. J."},{"full_name":"Reiska, P.","last_name":"Reiska","first_name":"P."},{"first_name":"M.","last_name":"Ahlberg","full_name":"Ahlberg, M."},{"first_name":"J.","last_name":"Novak","full_name":"Novak, J."}],"user_id":"54823","_id":"63082","language":[{"iso":"eng"}]},{"author":[{"last_name":"Fechner","first_name":"Sabine","orcid":"0000-0001-5645-5870","full_name":"Fechner, Sabine","id":"54823"},{"first_name":"Marion","last_name":"Haugwitz","full_name":"Haugwitz, Marion"},{"full_name":"Sandmann, Angela","first_name":"Angela","last_name":"Sandmann"},{"full_name":"Sumfleth, Elke","first_name":"Elke","last_name":"Sumfleth"}],"title":"Context-oriented learning and its effects on students' achievement levels in chemistry education","year":"2008","status":"public","date_updated":"2025-12-13T23:11:01Z","_id":"63081","language":[{"iso":"eng"}],"user_id":"54823","citation":{"apa":"Fechner, S., Haugwitz, M., Sandmann, A., &#38; Sumfleth, E. (2008). Context-oriented learning and its effects on students’ achievement levels in chemistry education. <i>Proceedings of the NARST 2008 Annual Meeting, Baltimore, MD, USA</i>.","ieee":"S. Fechner, M. Haugwitz, A. Sandmann, and E. Sumfleth, “Context-oriented learning and its effects on students’ achievement levels in chemistry education,” 2008.","chicago":"Fechner, Sabine, Marion Haugwitz, Angela Sandmann, and Elke Sumfleth. “Context-Oriented Learning and Its Effects on Students’ Achievement Levels in Chemistry Education.” In <i>Proceedings of the NARST 2008 Annual Meeting, Baltimore, MD, USA</i>, 2008.","short":"S. Fechner, M. Haugwitz, A. Sandmann, E. Sumfleth, in: Proceedings of the NARST 2008 Annual Meeting, Baltimore, MD, USA, 2008.","mla":"Fechner, Sabine, et al. “Context-Oriented Learning and Its Effects on Students’ Achievement Levels in Chemistry Education.” <i>Proceedings of the NARST 2008 Annual Meeting, Baltimore, MD, USA</i>, 2008.","ama":"Fechner S, Haugwitz M, Sandmann A, Sumfleth E. Context-oriented learning and its effects on students’ achievement levels in chemistry education. In: <i>Proceedings of the NARST 2008 Annual Meeting, Baltimore, MD, USA</i>. ; 2008.","bibtex":"@inproceedings{Fechner_Haugwitz_Sandmann_Sumfleth_2008, title={Context-oriented learning and its effects on students’ achievement levels in chemistry education}, booktitle={Proceedings of the NARST 2008 Annual Meeting, Baltimore, MD, USA}, author={Fechner, Sabine and Haugwitz, Marion and Sandmann, Angela and Sumfleth, Elke}, year={2008} }"},"publication":"Proceedings of the NARST 2008 Annual Meeting, Baltimore, MD, USA","quality_controlled":"1","extern":"1","date_created":"2025-12-13T23:04:49Z","department":[{"_id":"386"}],"type":"conference"},{"doi":"10.1103/PhysRevB.77.235428","article_number":"235428","language":[{"iso":"eng"}],"date_updated":"2025-12-16T11:11:03Z","publication_status":"published","intvolume":"        77","article_type":"original","year":"2008","title":"Screening in two dimensions: GW calculations for surfaces and thin films using the repeated-slab approach","publication_identifier":{"issn":["1098-0121"],"eissn":["1550-235X"]},"author":[{"full_name":"Freysoldt, Christoph","first_name":"Christoph","last_name":"Freysoldt"},{"last_name":"Eggert","first_name":"Philipp","full_name":"Eggert, Philipp"},{"full_name":"Rinke, Patrick","last_name":"Rinke","first_name":"Patrick"},{"first_name":"Arno","orcid":"0000-0002-4855-071X","last_name":"Schindlmayr","full_name":"Schindlmayr, Arno","id":"458"},{"full_name":"Scheffler, Matthias","last_name":"Scheffler","first_name":"Matthias"}],"type":"journal_article","department":[{"_id":"296"},{"_id":"35"},{"_id":"170"},{"_id":"230"}],"file":[{"date_created":"2020-08-28T11:51:42Z","file_name":"PhysRevB.77.235428.pdf","access_level":"open_access","creator":"schindlm","description":"Creative Commons Attribution 3.0 Unported Public License (CC BY 3.0)","file_size":286723,"relation":"main_file","date_updated":"2020-08-30T15:32:46Z","file_id":"18565","content_type":"application/pdf","title":"Screening in two dimensions: GW calculations for surfaces and thin films using the repeated-slab approach"}],"date_created":"2020-08-28T11:50:14Z","abstract":[{"lang":"eng","text":"In the context of photoelectron spectroscopy, the GW approach has developed into the method of choice for computing excitation spectra of weakly correlated bulk systems and their surfaces. To employ the established computational schemes that have been developed for three-dimensional crystals, two-dimensional systems are typically treated in the repeated-slab approach. In this work we critically examine this approach and identify three important aspects for which the treatment of long-range screening in two dimensions differs from the bulk: (1) anisotropy of the macroscopic screening, (2) k-point sampling parallel to the surface, (3) periodic repetition and slab-slab interaction. For prototypical semiconductor (silicon) and ionic (NaCl) thin films we quantify the individual contributions of points (1) to (3) and develop robust and efficient correction schemes derived from the classic theory of dielectric screening."}],"issue":"23","publication":"Physical Review B","ddc":["530"],"user_id":"16199","volume":77,"publisher":"American Physical Society","_id":"18564","has_accepted_license":"1","status":"public","oa":"1","external_id":{"arxiv":["0801.1714"],"isi":["000257289500118"]},"quality_controlled":"1","file_date_updated":"2020-08-30T15:32:46Z","citation":{"apa":"Freysoldt, C., Eggert, P., Rinke, P., Schindlmayr, A., &#38; Scheffler, M. (2008). Screening in two dimensions: GW calculations for surfaces and thin films using the repeated-slab approach. <i>Physical Review B</i>, <i>77</i>(23), Article 235428. <a href=\"https://doi.org/10.1103/PhysRevB.77.235428\">https://doi.org/10.1103/PhysRevB.77.235428</a>","ieee":"C. Freysoldt, P. Eggert, P. Rinke, A. Schindlmayr, and M. Scheffler, “Screening in two dimensions: GW calculations for surfaces and thin films using the repeated-slab approach,” <i>Physical Review B</i>, vol. 77, no. 23, Art. no. 235428, 2008, doi: <a href=\"https://doi.org/10.1103/PhysRevB.77.235428\">10.1103/PhysRevB.77.235428</a>.","short":"C. Freysoldt, P. Eggert, P. Rinke, A. Schindlmayr, M. Scheffler, Physical Review B 77 (2008).","chicago":"Freysoldt, Christoph, Philipp Eggert, Patrick Rinke, Arno Schindlmayr, and Matthias Scheffler. “Screening in Two Dimensions: GW Calculations for Surfaces and Thin Films Using the Repeated-Slab Approach.” <i>Physical Review B</i> 77, no. 23 (2008). <a href=\"https://doi.org/10.1103/PhysRevB.77.235428\">https://doi.org/10.1103/PhysRevB.77.235428</a>.","mla":"Freysoldt, Christoph, et al. “Screening in Two Dimensions: GW Calculations for Surfaces and Thin Films Using the Repeated-Slab Approach.” <i>Physical Review B</i>, vol. 77, no. 23, 235428, American Physical Society, 2008, doi:<a href=\"https://doi.org/10.1103/PhysRevB.77.235428\">10.1103/PhysRevB.77.235428</a>.","ama":"Freysoldt C, Eggert P, Rinke P, Schindlmayr A, Scheffler M. Screening in two dimensions: GW calculations for surfaces and thin films using the repeated-slab approach. <i>Physical Review B</i>. 2008;77(23). doi:<a href=\"https://doi.org/10.1103/PhysRevB.77.235428\">10.1103/PhysRevB.77.235428</a>","bibtex":"@article{Freysoldt_Eggert_Rinke_Schindlmayr_Scheffler_2008, title={Screening in two dimensions: GW calculations for surfaces and thin films using the repeated-slab approach}, volume={77}, DOI={<a href=\"https://doi.org/10.1103/PhysRevB.77.235428\">10.1103/PhysRevB.77.235428</a>}, number={23235428}, journal={Physical Review B}, publisher={American Physical Society}, author={Freysoldt, Christoph and Eggert, Philipp and Rinke, Patrick and Schindlmayr, Arno and Scheffler, Matthias}, year={2008} }"},"isi":"1"},{"citation":{"ieee":"M. Hyvärinen, K. Mikkonen, and J. Mildorf, Eds., <i>Narrative: Knowing, Living, Telling</i>, vol. 6, no. 2. Johns Hopkins University Press, 2008, pp. 225–231.","apa":"Narrative: Knowing, Living, Telling. (2008). In M. Hyvärinen, K. Mikkonen, &#38; J. Mildorf (Eds.), <i>Partial Answers</i> (Vol. 6, Issue 2, pp. 225–231). Johns Hopkins University Press.","chicago":"Hyvärinen, Matti, Kai Mikkonen, and Jarmila Mildorf, eds. <i>Narrative: Knowing, Living, Telling</i>. <i>Partial Answers</i>. Vol. 6. Johns Hopkins University Press, 2008.","short":"M. Hyvärinen, K. Mikkonen, J. Mildorf, eds., Narrative: Knowing, Living, Telling, Johns Hopkins University Press, 2008.","mla":"Hyvärinen, Matti, et al., editors. “Narrative: Knowing, Living, Telling.” <i>Partial Answers</i>, vol. 6, no. 2, Johns Hopkins University Press, 2008, pp. 225–31.","bibtex":"@book{Hyvärinen_Mikkonen_Mildorf_2008, title={Narrative: Knowing, Living, Telling}, volume={6}, number={2}, journal={Partial Answers}, publisher={Johns Hopkins University Press}, year={2008}, pages={225–231} }","ama":"Hyvärinen M, Mikkonen K, Mildorf J, eds. <i>Narrative: Knowing, Living, Telling</i>. Vol 6. Johns Hopkins University Press; 2008:225-231."},"quality_controlled":"1","status":"public","page":"225-231","_id":"9199","publisher":"Johns Hopkins University Press","user_id":"14972","editor":[{"first_name":"Matti","last_name":"Hyvärinen","full_name":"Hyvärinen, Matti"},{"full_name":"Mikkonen, Kai","last_name":"Mikkonen","first_name":"Kai"},{"full_name":"Mildorf, Jarmila","last_name":"Mildorf","first_name":"Jarmila","id":"356"}],"volume":6,"publication":"Partial Answers","issue":"2","date_created":"2019-04-16T10:55:32Z","type":"journal_editor","department":[{"_id":"1"}],"title":"Narrative: Knowing, Living, Telling","year":"2008","publication_identifier":{"issn":["1565-3668"]},"date_updated":"2026-03-10T14:10:14Z","publication_status":"published","intvolume":"         6","language":[{"iso":"eng"}]},{"date_created":"2026-08-23T17:13:15Z","type":"journal_article","issue":"1","publication":"Educational Studies","extern":"1","abstract":[{"text":"The link between formal education and the formation of national attachment is widely acknowledged. Yet, research on teachers’ national attachment is still relatively rare. Based on a comparative analysis of survey data obtained from 281 Berlin and London state secondary school head teachers, this paper proposes a multivariate model in which notions of national identity, levels of national pride and levels of supranational attachment represent predictors of national attachment. The respective statistical analyses reveal striking cross‐national similarities in terms of the individual and joint explanatory impact of these predictors. Other findings concern correlations between different notions of Britishness/Germanness and levels of national attachment, the relationship between national and supranational attachment, and associations between national pride and national attachment.","lang":"eng"}],"language":[{"iso":"eng"}],"doi":"10.1080/03055690701785277","author":[{"full_name":"Pöllmann, Andreas","orcid":"0000-0002-9090-2547","last_name":"Pöllmann","first_name":"Andreas","id":"77437"}],"publication_identifier":{"issn":["0305-5698","1465-3400"]},"title":"National attachment among Berlin and London head teachers: The explanatory impact of national identity, national pride and supranational attachment","year":"2008","article_type":"original","intvolume":"        34","publication_status":"published","date_updated":"2026-08-24T08:23:00Z","citation":{"mla":"Pöllmann, Andreas. “National Attachment among Berlin and London Head Teachers: The Explanatory Impact of National Identity, National Pride and Supranational Attachment.” <i>Educational Studies</i>, vol. 34, no. 1, Informa UK Limited, 2008, pp. 45–53, doi:<a href=\"https://doi.org/10.1080/03055690701785277\">10.1080/03055690701785277</a>.","ama":"Pöllmann A. National attachment among Berlin and London head teachers: The explanatory impact of national identity, national pride and supranational attachment. <i>Educational Studies</i>. 2008;34(1):45-53. doi:<a href=\"https://doi.org/10.1080/03055690701785277\">10.1080/03055690701785277</a>","bibtex":"@article{Pöllmann_2008, title={National attachment among Berlin and London head teachers: The explanatory impact of national identity, national pride and supranational attachment}, volume={34}, DOI={<a href=\"https://doi.org/10.1080/03055690701785277\">10.1080/03055690701785277</a>}, number={1}, journal={Educational Studies}, publisher={Informa UK Limited}, author={Pöllmann, Andreas}, year={2008}, pages={45–53} }","apa":"Pöllmann, A. (2008). National attachment among Berlin and London head teachers: The explanatory impact of national identity, national pride and supranational attachment. <i>Educational Studies</i>, <i>34</i>(1), 45–53. <a href=\"https://doi.org/10.1080/03055690701785277\">https://doi.org/10.1080/03055690701785277</a>","ieee":"A. Pöllmann, “National attachment among Berlin and London head teachers: The explanatory impact of national identity, national pride and supranational attachment,” <i>Educational Studies</i>, vol. 34, no. 1, pp. 45–53, 2008, doi: <a href=\"https://doi.org/10.1080/03055690701785277\">10.1080/03055690701785277</a>.","chicago":"Pöllmann, Andreas. “National Attachment among Berlin and London Head Teachers: The Explanatory Impact of National Identity, National Pride and Supranational Attachment.” <i>Educational Studies</i> 34, no. 1 (2008): 45–53. <a href=\"https://doi.org/10.1080/03055690701785277\">https://doi.org/10.1080/03055690701785277</a>.","short":"A. Pöllmann, Educational Studies 34 (2008) 45–53."},"quality_controlled":"1","publisher":"Informa UK Limited","_id":"66782","page":"45-53","volume":34,"user_id":"77437","status":"public"},{"abstract":[{"text":"Am Beispiel der naturwissenschaftlichen Fächer untersucht die Studie den\r\neinzelschulischen Gesamtzusammenhang, in dem sich Fachunterricht am Gymnasium vollzieht.\r\nDazu werden die Schulkultur als auch die fachspezifische Kultur mit einem umfangreichen Indikatorensatz operationalisiert und anschließend aufeinander bezogen sowie in Bezug zur fachspezifischen Schuleffektivität gesetzt. Es ergeben sich deutliche Hinweise auf eine Autonomie fachspezifischer Subkulturen sowie auf einen Zusammenhang zwischen dem Stellenwert naturwissenschaftlicher Fächer und den betreffenden Leistungsergebnissen.","lang":"ger"}],"publication":"Zeitschrift für Pädagogik","issue":"3","type":"journal_article","keyword":["Lernen","Schulkultur"],"department":[{"_id":"556"}],"date_created":"2022-05-03T06:54:51Z","date_updated":"2026-08-29T08:39:03Z","publication_status":"published","intvolume":"        54","article_type":"original","title":"Schulkultur als Kontext naturwissenschaftlichen Lernens. Allgemeine und fachspezifische explorative Analysen","year":"2008","author":[{"full_name":"van Ackeren, Isabell","last_name":"van Ackeren","first_name":"Isabell"},{"last_name":"Block","first_name":"Rainer","full_name":"Block, Rainer"},{"last_name":"Kullmann","first_name":"Harry","orcid":"0000-0001-5488-5105","full_name":"Kullmann, Harry","id":"77972"},{"last_name":"Sprütten","first_name":"Frank","full_name":"Sprütten, Frank"},{"first_name":"Klaus","last_name":"Klemm","full_name":"Klemm, Klaus"}],"publication_identifier":{"issn":["0044-3247"]},"doi":"10.25656/01:4355","main_file_link":[{"open_access":"1","url":"https://www.pedocs.de/volltexte/2011/4355/pdf/ZfPaed_2008_3_vanAckeren_Block_Klemm_Kullmann_Spruetten_Schulkultur_Kontext_D_A.pdf"}],"language":[{"iso":"ger"}],"quality_controlled":"1","citation":{"short":"I. van Ackeren, R. Block, H. Kullmann, F. Sprütten, K. Klemm, Zeitschrift für Pädagogik 54 (2008) 341–360.","chicago":"Ackeren, Isabell van, Rainer Block, Harry Kullmann, Frank Sprütten, and Klaus Klemm. “Schulkultur als Kontext naturwissenschaftlichen Lernens. Allgemeine und fachspezifische explorative Analysen.” <i>Zeitschrift für Pädagogik</i> 54, no. 3 (2008): 341–360. <a href=\"https://doi.org/10.25656/01:4355\">https://doi.org/10.25656/01:4355</a>.","apa":"van Ackeren, I., Block, R., Kullmann, H., Sprütten, F., &#38; Klemm, K. (2008). Schulkultur als Kontext naturwissenschaftlichen Lernens. Allgemeine und fachspezifische explorative Analysen. <i>Zeitschrift für Pädagogik</i>, <i>54</i>(3), 341–360. <a href=\"https://doi.org/10.25656/01:4355\">https://doi.org/10.25656/01:4355</a>","ieee":"I. van Ackeren, R. Block, H. Kullmann, F. Sprütten, and K. Klemm, “Schulkultur als Kontext naturwissenschaftlichen Lernens. Allgemeine und fachspezifische explorative Analysen,” <i>Zeitschrift für Pädagogik</i>, vol. 54, no. 3, pp. 341–360, 2008, doi: <a href=\"https://doi.org/10.25656/01:4355\">10.25656/01:4355</a>.","ama":"van Ackeren I, Block R, Kullmann H, Sprütten F, Klemm K. Schulkultur als Kontext naturwissenschaftlichen Lernens. Allgemeine und fachspezifische explorative Analysen. <i>Zeitschrift für Pädagogik</i>. 2008;54(3):341–360. doi:<a href=\"https://doi.org/10.25656/01:4355\">10.25656/01:4355</a>","bibtex":"@article{van Ackeren_Block_Kullmann_Sprütten_Klemm_2008, title={Schulkultur als Kontext naturwissenschaftlichen Lernens. Allgemeine und fachspezifische explorative Analysen}, volume={54}, DOI={<a href=\"https://doi.org/10.25656/01:4355\">10.25656/01:4355</a>}, number={3}, journal={Zeitschrift für Pädagogik}, author={van Ackeren, Isabell and Block, Rainer and Kullmann, Harry and Sprütten, Frank and Klemm, Klaus}, year={2008}, pages={341–360} }","mla":"van Ackeren, Isabell, et al. “Schulkultur als Kontext naturwissenschaftlichen Lernens. Allgemeine und fachspezifische explorative Analysen.” <i>Zeitschrift für Pädagogik</i>, vol. 54, no. 3, 2008, pp. 341–360, doi:<a href=\"https://doi.org/10.25656/01:4355\">10.25656/01:4355</a>."},"oa":"1","status":"public","jel":["I21"],"user_id":"105186","volume":54,"page":"341–360","_id":"31026"},{"citation":{"chicago":"Bsiri, Sandra, and Michaela Geierhos. “Informationsextraktion aus Stellenanzeigen im Internet.” In <i>LWA 2007: Lernen - Wissen - Adaption, Halle, September 2007, Workshop Proceedings</i>, edited by Alexander  Hinneburg, 229–36.  Halle-Wittenberg, Germany: Martin-Luther-University, 2007.","short":"S. Bsiri, M. Geierhos, in: A. Hinneburg (Ed.), LWA 2007: Lernen - Wissen - Adaption, Halle, September 2007, Workshop Proceedings, Martin-Luther-University,  Halle-Wittenberg, Germany, 2007, pp. 229–236.","ama":"Bsiri S, Geierhos M. Informationsextraktion aus Stellenanzeigen im Internet. In: Hinneburg A, ed. <i>LWA 2007: Lernen - Wissen - Adaption, Halle, September 2007, Workshop Proceedings</i>.  Halle-Wittenberg, Germany: Martin-Luther-University; 2007:229-236.","bibtex":"@inproceedings{Bsiri_Geierhos_2007, place={ Halle-Wittenberg, Germany}, title={Informationsextraktion aus Stellenanzeigen im Internet}, booktitle={LWA 2007: Lernen - Wissen - Adaption, Halle, September 2007, Workshop Proceedings}, publisher={Martin-Luther-University}, author={Bsiri, Sandra and Geierhos, Michaela}, editor={Hinneburg, Alexander Editor}, year={2007}, pages={229–236} }","mla":"Bsiri, Sandra, and Michaela Geierhos. “Informationsextraktion aus Stellenanzeigen im Internet.” <i>LWA 2007: Lernen - Wissen - Adaption, Halle, September 2007, Workshop Proceedings</i>, edited by Alexander  Hinneburg, Martin-Luther-University, 2007, pp. 229–36.","apa":"Bsiri, S., &#38; Geierhos, M. (2007). Informationsextraktion aus Stellenanzeigen im Internet. In A. Hinneburg (Ed.), <i>LWA 2007: Lernen - Wissen - Adaption, Halle, September 2007, Workshop Proceedings</i> (pp. 229–236).  Halle-Wittenberg, Germany: Martin-Luther-University.","ieee":"S. Bsiri and M. Geierhos, “Informationsextraktion aus Stellenanzeigen im Internet,” in <i>LWA 2007: Lernen - Wissen - Adaption, Halle, September 2007, Workshop Proceedings</i>, Halle (Saale), Germany, 2007, pp. 229–236."},"quality_controlled":"1","place":" Halle-Wittenberg, Germany","status":"public","conference":{"location":"Halle (Saale), Germany","name":"Workshop-Woche: Lernen - Wissen - Adaption","start_date":"2007-09-24","end_date":"2007-09-26"},"page":"229-236","_id":"1107","publisher":"Martin-Luther-University","user_id":"42496","editor":[{"full_name":"Hinneburg, Alexander ","first_name":"Alexander ","last_name":"Hinneburg"}],"publication":"LWA 2007: Lernen - Wissen - Adaption, Halle, September 2007, Workshop Proceedings","extern":"1","abstract":[{"text":"Dieser Beitrag beschäftigt sich mit der Informationsextraktion aus Stellenanzeigen im französischsprachigen Web. Ziel dieser Arbeit ist es, unstrukturierte Dokumente in Repräasentationsvektoren anhand lokaler Grammatiken zu transformieren. Auf diese Weise wird\r\nes möglich, den Stellenmarkt für Jobsuchmaschinen transparenter zu gestalten, indem nur auf dem Inhalt der Anzeige in Form von  Darstellungsvektoren anstatt auf unübersichtlichem Fließtext gesucht werden muss.","lang":"ger"}],"date_created":"2018-01-29T13:22:18Z","type":"conference","department":[{"_id":"36"},{"_id":"1"},{"_id":"579"}],"year":"2007","title":"Informationsextraktion aus Stellenanzeigen im Internet","publication_identifier":{"isbn":["978-3-86010-907-6"]},"author":[{"full_name":"Bsiri, Sandra","last_name":"Bsiri","first_name":"Sandra"},{"id":"42496","orcid":"0000-0002-8180-5606","first_name":"Michaela","last_name":"Geierhos","full_name":"Geierhos, Michaela"}],"publication_status":"published","date_updated":"2022-01-06T06:50:56Z","language":[{"iso":"ger"}]},{"quality_controlled":"1","file_date_updated":"2020-08-30T15:37:17Z","citation":{"ieee":"S. Botti, A. Schindlmayr, R. Del Sole, and L. Reining, “Time-dependent density-functional theory for extended systems,” <i>Reports on Progress in Physics</i>, vol. 70, no. 3, pp. 357–407, 2007.","apa":"Botti, S., Schindlmayr, A., Del Sole, R., &#38; Reining, L. (2007). Time-dependent density-functional theory for extended systems. <i>Reports on Progress in Physics</i>, <i>70</i>(3), 357–407. <a href=\"https://doi.org/10.1088/0034-4885/70/3/r02\">https://doi.org/10.1088/0034-4885/70/3/r02</a>","short":"S. Botti, A. Schindlmayr, R. Del Sole, L. Reining, Reports on Progress in Physics 70 (2007) 357–407.","chicago":"Botti, Silvana, Arno Schindlmayr, Rodolfo Del Sole, and Lucia Reining. “Time-Dependent Density-Functional Theory for Extended Systems.” <i>Reports on Progress in Physics</i> 70, no. 3 (2007): 357–407. <a href=\"https://doi.org/10.1088/0034-4885/70/3/r02\">https://doi.org/10.1088/0034-4885/70/3/r02</a>.","mla":"Botti, Silvana, et al. “Time-Dependent Density-Functional Theory for Extended Systems.” <i>Reports on Progress in Physics</i>, vol. 70, no. 3, IOP Publishing, 2007, pp. 357–407, doi:<a href=\"https://doi.org/10.1088/0034-4885/70/3/r02\">10.1088/0034-4885/70/3/r02</a>.","bibtex":"@article{Botti_Schindlmayr_Del Sole_Reining_2007, title={Time-dependent density-functional theory for extended systems}, volume={70}, DOI={<a href=\"https://doi.org/10.1088/0034-4885/70/3/r02\">10.1088/0034-4885/70/3/r02</a>}, number={3}, journal={Reports on Progress in Physics}, publisher={IOP Publishing}, author={Botti, Silvana and Schindlmayr, Arno and Del Sole, Rodolfo and Reining, Lucia}, year={2007}, pages={357–407} }","ama":"Botti S, Schindlmayr A, Del Sole R, Reining L. Time-dependent density-functional theory for extended systems. <i>Reports on Progress in Physics</i>. 2007;70(3):357-407. doi:<a href=\"https://doi.org/10.1088/0034-4885/70/3/r02\">10.1088/0034-4885/70/3/r02</a>"},"isi":"1","external_id":{"isi":["000244875800003"]},"has_accepted_license":"1","status":"public","user_id":"458","ddc":["530"],"volume":70,"page":"357-407","publisher":"IOP Publishing","_id":"18589","extern":"1","abstract":[{"text":"For the calculation of neutral excitations, time-dependent density functional theory (TDDFT) is an exact reformulation of the many-body time-dependent Schrödinger equation, based on knowledge of the density instead of the many-body wavefunction. The density can be determined in an efficient scheme by solving one-particle non-interacting Schrödinger equations—the Kohn–Sham equations. The complication of the problem is hidden in the—unknown—time-dependent exchange and correlation potential that appears in the Kohn–Sham equations and for which it is essential to find good approximations. Many approximations have been suggested and tested for finite systems, where even the very simple adiabatic local-density approximation (ALDA) has often proved to be successful. In the case of solids, ALDA fails to reproduce optical absorption spectra, which are instead well described by solving the Bethe–Salpeter equation of many-body perturbation theory (MBPT). On the other hand, ALDA can lead to excellent results for loss functions (at vanishing and finite momentum transfer). In view of this and thanks to recent successful developments of improved linear-response kernels derived from MBPT, TDDFT is today considered a promising alternative to MBPT for the calculation of electronic spectra, even for solids. After reviewing the fundamentals of TDDFT within linear response, we discuss different approaches and a variety of applications to extended systems.","lang":"eng"}],"publication":"Reports on Progress in Physics","issue":"3","type":"journal_article","file":[{"creator":"schindlm","date_created":"2020-08-28T16:32:12Z","description":"© 2007 IOP Publishing Ltd","file_size":1166692,"access_level":"closed","file_name":"Botti_2007_Rep._Prog._Phys._70_R02.pdf","date_updated":"2020-08-30T15:37:17Z","relation":"main_file","content_type":"application/pdf","file_id":"18590","title":"Time-dependent density-functional theory for extended systems"}],"date_created":"2020-08-28T16:30:06Z","publication_status":"published","date_updated":"2022-01-06T06:53:40Z","article_type":"review","intvolume":"        70","year":"2007","title":"Time-dependent density-functional theory for extended systems","publication_identifier":{"eissn":["1361-6633"],"issn":["0034-4885"]},"author":[{"full_name":"Botti, Silvana","first_name":"Silvana","last_name":"Botti"},{"full_name":"Schindlmayr, Arno","first_name":"Arno","last_name":"Schindlmayr","orcid":"0000-0002-4855-071X","id":"458"},{"full_name":"Del Sole, Rodolfo","last_name":"Del Sole","first_name":"Rodolfo"},{"last_name":"Reining","first_name":"Lucia","full_name":"Reining, Lucia"}],"doi":"10.1088/0034-4885/70/3/r02","language":[{"iso":"eng"}]},{"abstract":[{"text":"Using density-functional theory, we investigate the stability of the half-metallic ground state of magnetite under different strain conditions. The effects of volume relaxation and internal degrees of freedom are fully taken into account. For hydrostatic compression, planar strain in the (001) plane and uniaxial strain along the [001] direction, we derive quantitative limits beyond which magnetite becomes metallic. As a major new result, we identify the bond length between the octahedrally coordinated iron atoms and their neighbouring oxygen atoms as the main characteristic parameter, and we show that the transition occurs if external strain reduces this interatomic distance from 2.06 Å in equilibrium to below a critical value of 1.99 Å. Based on this criterion, we also argue that planar strain due to epitaxial growth does not lead to a metallic state for magnetite films grown on (111)-oriented substrates.","lang":"eng"}],"extern":"1","publication":"New Journal of Physics","issue":"1","type":"journal_article","file":[{"date_updated":"2020-08-30T15:40:54Z","relation":"main_file","access_level":"open_access","file_size":573804,"file_name":"Friák_2007_New_J._Phys._9_005.pdf","title":"Ab initio study of the half-metal to metal transition in strained magnetite","content_type":"application/pdf","file_id":"18592","creator":"schindlm","description":"© 2007 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft","date_created":"2020-08-28T16:40:11Z"}],"date_created":"2020-08-28T16:34:37Z","date_updated":"2022-01-06T06:53:41Z","publication_status":"published","intvolume":"         9","article_type":"original","title":"Ab initio study of the half-metal to metal transition in strained magnetite","year":"2007","author":[{"first_name":"Martin","last_name":"Friák","full_name":"Friák, Martin"},{"id":"458","full_name":"Schindlmayr, Arno","first_name":"Arno","orcid":"0000-0002-4855-071X","last_name":"Schindlmayr"},{"full_name":"Scheffler, Matthias","last_name":"Scheffler","first_name":"Matthias"}],"publication_identifier":{"eissn":["1361-6633"],"issn":["0034-4885"]},"doi":"10.1088/1367-2630/9/1/005","article_number":"5","language":[{"iso":"eng"}],"quality_controlled":"1","file_date_updated":"2020-08-30T15:40:54Z","isi":"1","citation":{"short":"M. Friák, A. Schindlmayr, M. Scheffler, New Journal of Physics 9 (2007).","chicago":"Friák, Martin, Arno Schindlmayr, and Matthias Scheffler. “Ab Initio Study of the Half-Metal to Metal Transition in Strained Magnetite.” <i>New Journal of Physics</i> 9, no. 1 (2007). <a href=\"https://doi.org/10.1088/1367-2630/9/1/005\">https://doi.org/10.1088/1367-2630/9/1/005</a>.","ieee":"M. Friák, A. Schindlmayr, and M. Scheffler, “Ab initio study of the half-metal to metal transition in strained magnetite,” <i>New Journal of Physics</i>, vol. 9, no. 1, 2007.","apa":"Friák, M., Schindlmayr, A., &#38; Scheffler, M. (2007). Ab initio study of the half-metal to metal transition in strained magnetite. <i>New Journal of Physics</i>, <i>9</i>(1). <a href=\"https://doi.org/10.1088/1367-2630/9/1/005\">https://doi.org/10.1088/1367-2630/9/1/005</a>","bibtex":"@article{Friák_Schindlmayr_Scheffler_2007, title={Ab initio study of the half-metal to metal transition in strained magnetite}, volume={9}, DOI={<a href=\"https://doi.org/10.1088/1367-2630/9/1/005\">10.1088/1367-2630/9/1/005</a>}, number={15}, journal={New Journal of Physics}, publisher={IOP Publishing and Deutsche Physikalische Gesellschaft}, author={Friák, Martin and Schindlmayr, Arno and Scheffler, Matthias}, year={2007} }","ama":"Friák M, Schindlmayr A, Scheffler M. Ab initio study of the half-metal to metal transition in strained magnetite. <i>New Journal of Physics</i>. 2007;9(1). doi:<a href=\"https://doi.org/10.1088/1367-2630/9/1/005\">10.1088/1367-2630/9/1/005</a>","mla":"Friák, Martin, et al. “Ab Initio Study of the Half-Metal to Metal Transition in Strained Magnetite.” <i>New Journal of Physics</i>, vol. 9, no. 1, 5, IOP Publishing and Deutsche Physikalische Gesellschaft, 2007, doi:<a href=\"https://doi.org/10.1088/1367-2630/9/1/005\">10.1088/1367-2630/9/1/005</a>."},"oa":"1","external_id":{"isi":["000243590400002"]},"has_accepted_license":"1","status":"public","ddc":["530"],"user_id":"458","volume":9,"_id":"18591","publisher":"IOP Publishing and Deutsche Physikalische Gesellschaft"},{"type":"book_chapter","date_created":"2020-08-28T16:43:51Z","file":[{"creator":"schindlm","description":"© 2007 Springer-Verlag, Berlin, Heidelberg","date_created":"2020-08-28T16:49:56Z","relation":"main_file","date_updated":"2020-08-30T15:42:34Z","file_name":"Schindlmayr-Scheffler2007_Chapter_QuasiparticleCalculationsForPo.pdf","access_level":"closed","file_size":649066,"title":"Quasiparticle calculations for point defects at semiconductor surfaces","file_id":"18594","content_type":"application/pdf"}],"abstract":[{"lang":"eng","text":"We present a quantitative parameter-free method for calculating defect states and charge-transition levels of point defects in semiconductors. It combines the strength of density-functional theory for ground-state total energies with quasiparticle corrections to the excitation spectrum obtained from many-body perturbation theory. The latter is implemented within the G0W0 approximation, in which the electronic self-energy is constructed non-self-consistently from the Green’s function of the underlying Kohn–Sham system. The method is general and applicable to arbitrary bulk or surface defects. As an example we consider anion vacancies at the (110) surfaces of III–V semiconductors. Relative to the Kohn–Sham eigenvalues in the local-density approximation, the quasiparticle corrections open the fundamental band gap and raise the position of defect states inside the gap. As a consequence, the charge-transition levels are also pushed to higher energies, leading to close agreement with the available experimental data."}],"extern":"1","publication":"Theory of Defects in Semiconductors","doi":"10.1007/11690320_8","language":[{"iso":"eng"}],"series_title":"Topics in Applied Physics","intvolume":"       104","date_updated":"2022-01-06T06:53:41Z","publication_status":"published","author":[{"id":"458","first_name":"Arno","last_name":"Schindlmayr","orcid":"0000-0002-4855-071X","full_name":"Schindlmayr, Arno"},{"full_name":"Scheffler, Matthias","last_name":"Scheffler","first_name":"Matthias"}],"publication_identifier":{"isbn":["978-3-540-33400-2"],"eissn":["1437-0859"],"eisbn":["978-3-540-33401-9"],"issn":["0303-4216"]},"title":"Quasiparticle calculations for point defects at semiconductor surfaces","year":"2007","place":"Berlin, Heidelberg","external_id":{"isi":["000241944900008"]},"quality_controlled":"1","citation":{"ieee":"A. Schindlmayr and M. Scheffler, “Quasiparticle calculations for point defects at semiconductor surfaces,” in <i>Theory of Defects in Semiconductors</i>, vol. 104, D. A. Drabold and S. K. Estreicher, Eds. Berlin, Heidelberg: Springer, 2007, pp. 165–192.","apa":"Schindlmayr, A., &#38; Scheffler, M. (2007). Quasiparticle calculations for point defects at semiconductor surfaces. In D. A. Drabold &#38; S. K. Estreicher (Eds.), <i>Theory of Defects in Semiconductors</i> (Vol. 104, pp. 165–192). Berlin, Heidelberg: Springer. <a href=\"https://doi.org/10.1007/11690320_8\">https://doi.org/10.1007/11690320_8</a>","short":"A. Schindlmayr, M. Scheffler, in: D.A. Drabold, S.K. Estreicher (Eds.), Theory of Defects in Semiconductors, Springer, Berlin, Heidelberg, 2007, pp. 165–192.","chicago":"Schindlmayr, Arno, and Matthias Scheffler. “Quasiparticle Calculations for Point Defects at Semiconductor Surfaces.” In <i>Theory of Defects in Semiconductors</i>, edited by David A. Drabold and Stefan K. Estreicher, 104:165–92. Topics in Applied Physics. Berlin, Heidelberg: Springer, 2007. <a href=\"https://doi.org/10.1007/11690320_8\">https://doi.org/10.1007/11690320_8</a>.","mla":"Schindlmayr, Arno, and Matthias Scheffler. “Quasiparticle Calculations for Point Defects at Semiconductor Surfaces.” <i>Theory of Defects in Semiconductors</i>, edited by David A. Drabold and Stefan K. Estreicher, vol. 104, Springer, 2007, pp. 165–92, doi:<a href=\"https://doi.org/10.1007/11690320_8\">10.1007/11690320_8</a>.","bibtex":"@inbook{Schindlmayr_Scheffler_2007, place={Berlin, Heidelberg}, series={Topics in Applied Physics}, title={Quasiparticle calculations for point defects at semiconductor surfaces}, volume={104}, DOI={<a href=\"https://doi.org/10.1007/11690320_8\">10.1007/11690320_8</a>}, booktitle={Theory of Defects in Semiconductors}, publisher={Springer}, author={Schindlmayr, Arno and Scheffler, Matthias}, editor={Drabold, David A. and Estreicher, Stefan K.Editors}, year={2007}, pages={165–192}, collection={Topics in Applied Physics} }","ama":"Schindlmayr A, Scheffler M. Quasiparticle calculations for point defects at semiconductor surfaces. In: Drabold DA, Estreicher SK, eds. <i>Theory of Defects in Semiconductors</i>. Vol 104. Topics in Applied Physics. Berlin, Heidelberg: Springer; 2007:165-192. doi:<a href=\"https://doi.org/10.1007/11690320_8\">10.1007/11690320_8</a>"},"isi":"1","file_date_updated":"2020-08-30T15:42:34Z","editor":[{"full_name":"Drabold, David A.","first_name":"David A.","last_name":"Drabold"},{"first_name":"Stefan K.","last_name":"Estreicher","full_name":"Estreicher, Stefan K."}],"volume":104,"ddc":["530"],"user_id":"458","publisher":"Springer","_id":"18593","page":"165-192","has_accepted_license":"1","status":"public"},{"department":[{"_id":"151"}],"type":"conference","date_created":"2019-04-29T10:11:16Z","abstract":[{"lang":"eng","text":"Penetration tests (Magness-Taylor, force/deformation, Kramer multiblade shear) applied directly over the peel of the fruit are the most acceptable methods for measuring firmness and turgidity of fruits and vegetables [1, 2]. To replace these destructive and mechanical penetration methods by non-destructive ultrasonic measurements implies a great advance in order to obtain fast studies about the state of the fruit at the time of harvest, during storage, and in the distribution points. Moreover, there are other advantages since this technique can be fast, non-destructive, fully automated, and performed on-line [1]. Within this context, the objective of this study was to examine the relationship between physico-mechanical characteristics (oil-gland break stress, thickness and dehydration) and ultrasonic characteristics in the ``Salustiana'' orange peel during the complete dehydration process of the orange at ambient conditions. After a description of the measurement system [3], the fruit selection procedure and the measurement protocol, we analyze the results of the change of physico-mechanical and ultrasonic properties in the orange peel and their change with storage time."}],"quality_controlled":"1","citation":{"mla":"Camarena Gandia, Francisco, et al. “Non-Destructive Ultrasonic Test of Orange Dehydration.” <i>Proceedings of 19th International Congress on Acoustics, Madrid</i>, 2007.","apa":"Camarena Gandia, F., Hemsel, T., Espinosa, V., Twiefel, J., Ardid, M., Martinez-Mora, J., &#38; Gandia, J. B. (2007). Non-destructive ultrasonic test of orange dehydration. In <i>Proceedings of 19th international congress on Acoustics, Madrid</i>.","ieee":"F. Camarena Gandia <i>et al.</i>, “Non-destructive ultrasonic test of orange dehydration,” in <i>Proceedings of 19th international congress on Acoustics, Madrid</i>, 2007.","chicago":"Camarena Gandia, Francisco, Tobias Hemsel, Victor Espinosa, Jens Twiefel, Miquel Ardid, Joan Martinez-Mora, and Joan Babtiste Gandia. “Non-Destructive Ultrasonic Test of Orange Dehydration.” In <i>Proceedings of 19th International Congress on Acoustics, Madrid</i>, 2007.","ama":"Camarena Gandia F, Hemsel T, Espinosa V, et al. Non-destructive ultrasonic test of orange dehydration. In: <i>Proceedings of 19th International Congress on Acoustics, Madrid</i>. ; 2007.","short":"F. Camarena Gandia, T. Hemsel, V. Espinosa, J. Twiefel, M. Ardid, J. Martinez-Mora, J.B. Gandia, in: Proceedings of 19th International Congress on Acoustics, Madrid, 2007.","bibtex":"@inproceedings{Camarena Gandia_Hemsel_Espinosa_Twiefel_Ardid_Martinez-Mora_Gandia_2007, title={Non-destructive ultrasonic test of orange dehydration}, booktitle={Proceedings of 19th international congress on Acoustics, Madrid}, author={Camarena Gandia, Francisco and Hemsel, Tobias and Espinosa, Victor and Twiefel, Jens and Ardid, Miquel and Martinez-Mora, Joan and Gandia, Joan Babtiste}, year={2007} }"},"publication":"Proceedings of 19th international congress on Acoustics, Madrid","user_id":"55222","language":[{"iso":"eng"}],"_id":"9562","date_updated":"2022-01-06T07:04:16Z","author":[{"full_name":"Camarena Gandia, Francisco","last_name":"Camarena Gandia","first_name":"Francisco"},{"first_name":"Tobias","last_name":"Hemsel","full_name":"Hemsel, Tobias","id":"210"},{"last_name":"Espinosa","first_name":"Victor","full_name":"Espinosa, Victor"},{"full_name":"Twiefel, Jens","last_name":"Twiefel","first_name":"Jens"},{"full_name":"Ardid, Miquel","first_name":"Miquel","last_name":"Ardid"},{"first_name":"Joan","last_name":"Martinez-Mora","full_name":"Martinez-Mora, Joan"},{"full_name":"Gandia, Joan Babtiste","last_name":"Gandia","first_name":"Joan Babtiste"}],"status":"public","year":"2007","title":"Non-destructive ultrasonic test of orange dehydration"},{"publication":"Journal of Sound and Vibration","abstract":[{"lang":"eng","text":"Surgical resection of brain tumours is a difficult task. To enhance surgery results, a tactile sensor is wanted that gives better resolution and sensitivity than the human tactile sense. The characteristics of resonant vibrating piezoelectric elements change with varying load. This allows for calculation of mechanical load parameters by measuring electrical quantities. Different setups of piezoelectric sensors have been used to investigate soft materials. Finally, a piezoelectric bimorph sensor gave good results for distinguishing tissue mimicking gel-phantoms with different gelatine concentrations. "}],"date_created":"2019-04-29T10:20:03Z","type":"journal_article","department":[{"_id":"151"}],"title":"Resonant vibrating sensors for tactile tissue differentiation","year":"2007","author":[{"full_name":"Hemsel, Tobias","last_name":"Hemsel","first_name":"Tobias","id":"210"},{"full_name":"Stroop, Ralf","first_name":"Ralf","last_name":"Stroop"},{"full_name":"Oliva Uribe, David","first_name":"David","last_name":"Oliva Uribe"},{"last_name":"Wallaschek","first_name":"Jörg","full_name":"Wallaschek, Jörg"}],"publication_identifier":{"issn":["0022-460X"]},"date_updated":"2022-01-06T07:04:16Z","intvolume":"       308","language":[{"iso":"eng"}],"doi":"10.1016/j.jsv.2007.03.063","citation":{"short":"T. Hemsel, R. Stroop, D. Oliva Uribe, J. Wallaschek, Journal of Sound and Vibration 308 (2007) 441–446.","chicago":"Hemsel, Tobias, Ralf Stroop, David Oliva Uribe, and Jörg Wallaschek. “Resonant Vibrating Sensors for Tactile Tissue Differentiation.” <i>Journal of Sound and Vibration</i> 308 (2007): 441–46. <a href=\"https://doi.org/10.1016/j.jsv.2007.03.063\">https://doi.org/10.1016/j.jsv.2007.03.063</a>.","apa":"Hemsel, T., Stroop, R., Oliva Uribe, D., &#38; Wallaschek, J. (2007). Resonant vibrating sensors for tactile tissue differentiation. <i>Journal of Sound and Vibration</i>, <i>308</i>, 441–446. <a href=\"https://doi.org/10.1016/j.jsv.2007.03.063\">https://doi.org/10.1016/j.jsv.2007.03.063</a>","ieee":"T. Hemsel, R. Stroop, D. Oliva Uribe, and J. Wallaschek, “Resonant vibrating sensors for tactile tissue differentiation,” <i>Journal of Sound and Vibration</i>, vol. 308, pp. 441–446, 2007.","ama":"Hemsel T, Stroop R, Oliva Uribe D, Wallaschek J. Resonant vibrating sensors for tactile tissue differentiation. <i>Journal of Sound and Vibration</i>. 2007;308:441-446. doi:<a href=\"https://doi.org/10.1016/j.jsv.2007.03.063\">10.1016/j.jsv.2007.03.063</a>","bibtex":"@article{Hemsel_Stroop_Oliva Uribe_Wallaschek_2007, title={Resonant vibrating sensors for tactile tissue differentiation}, volume={308}, DOI={<a href=\"https://doi.org/10.1016/j.jsv.2007.03.063\">10.1016/j.jsv.2007.03.063</a>}, journal={Journal of Sound and Vibration}, author={Hemsel, Tobias and Stroop, Ralf and Oliva Uribe, David and Wallaschek, Jörg}, year={2007}, pages={441–446} }","mla":"Hemsel, Tobias, et al. “Resonant Vibrating Sensors for Tactile Tissue Differentiation.” <i>Journal of Sound and Vibration</i>, vol. 308, 2007, pp. 441–46, doi:<a href=\"https://doi.org/10.1016/j.jsv.2007.03.063\">10.1016/j.jsv.2007.03.063</a>."},"quality_controlled":"1","status":"public","page":"441 - 446","_id":"9564","user_id":"55222","volume":308},{"author":[{"first_name":"Ernst-Günter","last_name":"Lierke","full_name":"Lierke, Ernst-Günter"},{"id":"210","full_name":"Hemsel, Tobias","first_name":"Tobias","last_name":"Hemsel"}],"year":"2007","status":"public","title":"Perspectives of Tumour Therapy by Local Ultrasonic Hyperthermia and Thermal Ablation","date_updated":"2022-01-06T07:04:16Z","_id":"9565","language":[{"iso":"eng"}],"user_id":"55222","citation":{"bibtex":"@inproceedings{Lierke_Hemsel_2007, title={Perspectives of Tumour Therapy by Local Ultrasonic Hyperthermia and Thermal Ablation}, booktitle={Proceedings of 19th international congress on Acoustics, Madrid}, author={Lierke, Ernst-Günter and Hemsel, Tobias}, year={2007} }","ama":"Lierke E-G, Hemsel T. Perspectives of Tumour Therapy by Local Ultrasonic Hyperthermia and Thermal Ablation. In: <i>Proceedings of 19th International Congress on Acoustics, Madrid</i>. ; 2007.","mla":"Lierke, Ernst-Günter, and Tobias Hemsel. “Perspectives of Tumour Therapy by Local Ultrasonic Hyperthermia and Thermal Ablation.” <i>Proceedings of 19th International Congress on Acoustics, Madrid</i>, 2007.","chicago":"Lierke, Ernst-Günter, and Tobias Hemsel. “Perspectives of Tumour Therapy by Local Ultrasonic Hyperthermia and Thermal Ablation.” In <i>Proceedings of 19th International Congress on Acoustics, Madrid</i>, 2007.","short":"E.-G. Lierke, T. Hemsel, in: Proceedings of 19th International Congress on Acoustics, Madrid, 2007.","ieee":"E.-G. Lierke and T. Hemsel, “Perspectives of Tumour Therapy by Local Ultrasonic Hyperthermia and Thermal Ablation,” in <i>Proceedings of 19th international congress on Acoustics, Madrid</i>, 2007.","apa":"Lierke, E.-G., &#38; Hemsel, T. (2007). Perspectives of Tumour Therapy by Local Ultrasonic Hyperthermia and Thermal Ablation. In <i>Proceedings of 19th international congress on Acoustics, Madrid</i>."},"publication":"Proceedings of 19th international congress on Acoustics, Madrid","quality_controlled":"1","date_created":"2019-04-29T10:21:57Z","department":[{"_id":"151"}],"type":"conference"},{"date_created":"2019-04-29T10:23:26Z","type":"journal_article","department":[{"_id":"151"}],"publication":"Proceedings of Symposium on Ultrasonic Electronics","citation":{"mla":"Shigematsu , Takashi, et al. “Fundamental Study on A Thickness-Shear Transformer Using X-Cut Lithium Niobate.” <i>Proceedings of Symposium on Ultrasonic Electronics</i>, vol. 28, 2007, pp. 439–40.","ama":"Shigematsu  T, Morita T, Hemsel T. Fundamental Study on A Thickness-Shear Transformer using X-Cut Lithium Niobate. <i>Proceedings of Symposium on Ultrasonic Electronics</i>. 2007;28:439-440.","bibtex":"@article{Shigematsu _Morita_Hemsel_2007, title={Fundamental Study on A Thickness-Shear Transformer using X-Cut Lithium Niobate}, volume={28}, journal={Proceedings of Symposium on Ultrasonic Electronics}, author={Shigematsu , Takashi and Morita, Takeshi and Hemsel, Tobias}, year={2007}, pages={439–440} }","apa":"Shigematsu , T., Morita, T., &#38; Hemsel, T. (2007). Fundamental Study on A Thickness-Shear Transformer using X-Cut Lithium Niobate. <i>Proceedings of Symposium on Ultrasonic Electronics</i>, <i>28</i>, 439–440.","ieee":"T. Shigematsu , T. Morita, and T. Hemsel, “Fundamental Study on A Thickness-Shear Transformer using X-Cut Lithium Niobate,” <i>Proceedings of Symposium on Ultrasonic Electronics</i>, vol. 28, pp. 439–440, 2007.","short":"T. Shigematsu , T. Morita, T. Hemsel, Proceedings of Symposium on Ultrasonic Electronics 28 (2007) 439–440.","chicago":"Shigematsu , Takashi, Takeshi Morita, and Tobias Hemsel. “Fundamental Study on A Thickness-Shear Transformer Using X-Cut Lithium Niobate.” <i>Proceedings of Symposium on Ultrasonic Electronics</i> 28 (2007): 439–40."},"quality_controlled":"1","page":"439 - 440","language":[{"iso":"eng"}],"_id":"9566","user_id":"55222","volume":28,"title":"Fundamental Study on A Thickness-Shear Transformer using X-Cut Lithium Niobate","status":"public","year":"2007","author":[{"full_name":"Shigematsu , Takashi","first_name":"Takashi","last_name":"Shigematsu "},{"last_name":"Morita","first_name":"Takeshi","full_name":"Morita, Takeshi"},{"id":"210","full_name":"Hemsel, Tobias","first_name":"Tobias","last_name":"Hemsel"}],"date_updated":"2022-01-06T07:04:16Z","intvolume":"        28"},{"department":[{"_id":"151"}],"type":"journal_article","date_created":"2019-04-29T10:25:57Z","abstract":[{"text":"Numerical predictions of the forced vibration of a disk assembly including frictional effects between the shrouds are presented concerning engineering needs for the blade design process. Assuming a tuned disk assembly, numerical static, free, and then forced vibration analyses of a shrouded turbine blade measured in the spin pit are performed systematically. For the excitation forces of an air jet evaluated from the fairly linear behavior of the experimental blade resonance peaks, the reliability of the proposed approach is validated through the very close agreement of the computed and measured resonant peaks. These resonant peaks demonstrate either a fairly linear behavior or a nonlinear one like the jump effect of blade resonance amplitudes, or elastic impacts between the shrouds. Also, the damping performance for different contact configurations between the shrouds is numerically analyzed. These numerical results indicate that the shrouds generate higher frictional damping for small angles (0{\\^a}30deg) between the circumferential direction and the normal vector to the contact surface.","lang":"eng"}],"quality_controlled":"1","citation":{"mla":"Szwedowicz, J., et al. “On Nonlinear Forced Vibration of Shrouded Turbine Blades.” <i>Journal of Turbomachinery</i>, vol. 130, no. 1, 2007, pp. 011002–011002.","bibtex":"@article{Szwedowicz_Visser_Sextro_Masserey_2007, title={On Nonlinear Forced Vibration of Shrouded Turbine Blades}, volume={130}, number={1}, journal={Journal of Turbomachinery}, author={Szwedowicz, J and Visser, R and Sextro, Walter and Masserey, P. A}, year={2007}, pages={011002–011002} }","ama":"Szwedowicz J, Visser R, Sextro W, Masserey PA. On Nonlinear Forced Vibration of Shrouded Turbine Blades. <i>Journal of Turbomachinery</i>. 2007;130(1):011002-011002.","ieee":"J. Szwedowicz, R. Visser, W. Sextro, and P. A. Masserey, “On Nonlinear Forced Vibration of Shrouded Turbine Blades,” <i>Journal of Turbomachinery</i>, vol. 130, no. 1, pp. 011002–011002, 2007.","apa":"Szwedowicz, J., Visser, R., Sextro, W., &#38; Masserey, P. A. (2007). On Nonlinear Forced Vibration of Shrouded Turbine Blades. <i>Journal of Turbomachinery</i>, <i>130</i>(1), 011002–011002.","chicago":"Szwedowicz, J, R Visser, Walter Sextro, and P. A Masserey. “On Nonlinear Forced Vibration of Shrouded Turbine Blades.” <i>Journal of Turbomachinery</i> 130, no. 1 (2007): 011002–011002.","short":"J. Szwedowicz, R. Visser, W. Sextro, P.A. Masserey, Journal of Turbomachinery 130 (2007) 011002–011002."},"publication":"Journal of Turbomachinery","issue":"1","volume":130,"user_id":"55222","language":[{"iso":"eng"}],"_id":"9567","page":"011002-011002","intvolume":"       130","date_updated":"2022-01-06T07:04:16Z","publication_identifier":{"issn":["0889-504X"]},"author":[{"last_name":"Szwedowicz","first_name":"J","full_name":"Szwedowicz, J"},{"full_name":"Visser, R","first_name":"R","last_name":"Visser"},{"last_name":"Sextro","first_name":"Walter","full_name":"Sextro, Walter","id":"21220"},{"full_name":"Masserey, P. A","last_name":"Masserey","first_name":"P. A"}],"title":"On Nonlinear Forced Vibration of Shrouded Turbine Blades","status":"public","year":"2007"},{"external_id":{"arxiv":["cond-mat/0608215"],"isi":["000243680100001"]},"quality_controlled":"1","citation":{"ama":"Freysoldt C, Eggert P, Rinke P, Schindlmayr A, Godby RW, Scheffler M. Dielectric anisotropy in the GW space–time method. <i>Computer Physics Communications</i>. 2007;176(1):1-13. doi:<a href=\"https://doi.org/10.1016/j.cpc.2006.07.018\">10.1016/j.cpc.2006.07.018</a>","bibtex":"@article{Freysoldt_Eggert_Rinke_Schindlmayr_Godby_Scheffler_2007, title={Dielectric anisotropy in the GW space–time method}, volume={176}, DOI={<a href=\"https://doi.org/10.1016/j.cpc.2006.07.018\">10.1016/j.cpc.2006.07.018</a>}, number={1}, journal={Computer Physics Communications}, publisher={Elsevier}, author={Freysoldt, Christoph and Eggert, Philipp and Rinke, Patrick and Schindlmayr, Arno and Godby, Rex W. and Scheffler, Matthias}, year={2007}, pages={1–13} }","mla":"Freysoldt, Christoph, et al. “Dielectric Anisotropy in the GW Space–Time Method.” <i>Computer Physics Communications</i>, vol. 176, no. 1, Elsevier, 2007, pp. 1–13, doi:<a href=\"https://doi.org/10.1016/j.cpc.2006.07.018\">10.1016/j.cpc.2006.07.018</a>.","short":"C. Freysoldt, P. Eggert, P. Rinke, A. Schindlmayr, R.W. Godby, M. Scheffler, Computer Physics Communications 176 (2007) 1–13.","chicago":"Freysoldt, Christoph, Philipp Eggert, Patrick Rinke, Arno Schindlmayr, Rex W. Godby, and Matthias Scheffler. “Dielectric Anisotropy in the GW Space–Time Method.” <i>Computer Physics Communications</i> 176, no. 1 (2007): 1–13. <a href=\"https://doi.org/10.1016/j.cpc.2006.07.018\">https://doi.org/10.1016/j.cpc.2006.07.018</a>.","apa":"Freysoldt, C., Eggert, P., Rinke, P., Schindlmayr, A., Godby, R. W., &#38; Scheffler, M. (2007). Dielectric anisotropy in the GW space–time method. <i>Computer Physics Communications</i>, <i>176</i>(1), 1–13. <a href=\"https://doi.org/10.1016/j.cpc.2006.07.018\">https://doi.org/10.1016/j.cpc.2006.07.018</a>","ieee":"C. Freysoldt, P. Eggert, P. Rinke, A. Schindlmayr, R. W. Godby, and M. Scheffler, “Dielectric anisotropy in the GW space–time method,” <i>Computer Physics Communications</i>, vol. 176, no. 1, pp. 1–13, 2007, doi: <a href=\"https://doi.org/10.1016/j.cpc.2006.07.018\">10.1016/j.cpc.2006.07.018</a>."},"isi":"1","file_date_updated":"2020-08-30T15:35:32Z","volume":176,"user_id":"458","ddc":["530"],"publisher":"Elsevier","_id":"18595","page":"1-13","has_accepted_license":"1","status":"public","type":"journal_article","date_created":"2020-08-28T16:52:21Z","file":[{"access_level":"closed","file_name":"CPC-176-1-2007.pdf","date_created":"2020-08-28T17:56:51Z","content_type":"application/pdf","file_id":"18596","title":"Dielectric anisotropy in the GW space-time method","file_size":267788,"date_updated":"2020-08-30T15:35:32Z","relation":"main_file","description":"© 2006 Elsevier B.V.","creator":"schindlm"}],"extern":"1","abstract":[{"lang":"eng","text":"Excited-state calculations, notably for quasiparticle band structures, are nowadays routinely performed within the GW approximation for the electronic self-energy. Nevertheless, certain numerical approximations and simplifications are still employed in practice to make the computations feasible. An important aspect for periodic systems is the proper treatment of the singularity of the screened Coulomb interaction in reciprocal space, which results from the slow 1/r decay in real space. This must be done without introducing artificial interactions between the quasiparticles and their periodic images in repeated cells, which occur when integrals of the screened Coulomb interaction are discretised in reciprocal space. An adequate treatment of both aspects is crucial for a numerically stable computation of the self-energy. In this article we build on existing schemes for isotropic screening and present an extension for anisotropic systems. We also show how the contributions to the dielectric function arising from the non-local part of the pseudopotentials can be computed efficiently. These improvements are crucial for obtaining a fast convergence with respect to the number of points used for the Brillouin zone integration and prove to be essential to make GW calculations for strongly anisotropic systems, such as slabs or multilayers, efficient."}],"issue":"1","publication":"Computer Physics Communications","doi":"10.1016/j.cpc.2006.07.018","language":[{"iso":"eng"}],"article_type":"original","intvolume":"       176","publication_status":"published","date_updated":"2022-11-11T06:50:39Z","publication_identifier":{"issn":["0010-4655"]},"author":[{"full_name":"Freysoldt, Christoph","first_name":"Christoph","last_name":"Freysoldt"},{"full_name":"Eggert, Philipp","first_name":"Philipp","last_name":"Eggert"},{"first_name":"Patrick","last_name":"Rinke","full_name":"Rinke, Patrick"},{"full_name":"Schindlmayr, Arno","orcid":"0000-0002-4855-071X","last_name":"Schindlmayr","first_name":"Arno","id":"458"},{"last_name":"Godby","first_name":"Rex W.","full_name":"Godby, Rex W."},{"last_name":"Scheffler","first_name":"Matthias","full_name":"Scheffler, Matthias"}],"title":"Dielectric anisotropy in the GW space–time method","year":"2007"}]