@misc{44022, author = {{Schroeter-Wittke, Harald}}, booktitle = {{Jahrbuch für Evangelische Kirchengeschichte des Rheinlandes}}, pages = {{352--354}}, title = {{{Jutta Krauß / Ulrich Kneise: Welterbe Wartburg. Porträt einer Tausendjährigen, Regensburg 2016}}}, volume = {{68}}, year = {{2019}}, } @misc{44020, author = {{Schroeter-Wittke, Harald}}, booktitle = {{Jahrbuch für Evangelische Kirchengeschichte des Rheinlandes}}, pages = {{346--348}}, title = {{{Friedl Brunckhorst / Karl Weber (Hg.): Kaiser Wilhelm II. und seine Zeit, Regensburg 2016}}}, volume = {{68}}, year = {{2019}}, } @article{44019, author = {{Schroeter-Wittke, Harald}}, journal = {{Praktische Theologie}}, pages = {{254--256}}, title = {{{Schire Jaakow und Weihnachtsidylle. Zum 100. Todestag von Alfred Rose}}}, volume = {{54}}, year = {{2019}}, } @article{44015, author = {{Schroeter-Wittke, Harald}}, journal = {{Liturgie und Kultur}}, number = {{2}}, pages = {{90--93}}, title = {{{Das neue Evangelische Gesangbuch – eine Phantasie}}}, volume = {{11}}, year = {{2019}}, } @article{44016, author = {{Schroeter-Wittke, Harald}}, journal = {{Praktische Theologie}}, pages = {{52--53}}, title = {{{Go down, Moses! Zum 75. Todestag von Robert Nathaniel }}}, volume = {{54}}, year = {{2019}}, } @article{44018, author = {{Schroeter-Wittke, Harald}}, journal = {{Praktische Theologie}}, pages = {{187--189}}, title = {{{Tod-Verweigerung. Zum 75. Todestag von Viktor Ullmann}}}, volume = {{54}}, year = {{2019}}, } @article{44017, author = {{Schroeter-Wittke, Harald}}, journal = {{Praktische Theologie}}, pages = {{120--122}}, title = {{{Rilkes Stunden-Buch. Ein Triptychon – neu }}}, volume = {{54}}, year = {{2019}}, } @misc{44026, author = {{Schroeter-Wittke, Harald}}, booktitle = {{Kunst und Kirche}}, number = {{2}}, pages = {{62--63}}, title = {{{Antje Mickan / Thomas Klie / Peter A. Berger (Hg.): Räume zwischen Kunst und Religion. Sprechende Formen und religionshybride Praxis (Rerum Religionum. Arbeiten zur Religionskultur 1), Bielefeld 2019}}}, volume = {{82}}, year = {{2019}}, } @misc{44024, author = {{Schroeter-Wittke, Harald}}, booktitle = {{Jahrbuch für Westfälische Kirchengeschichte}}, pages = {{493--496}}, title = {{{Larissa Eikermann / Stefanie Haupt / Roland Linde / Michael Zelle (Hgg.), Die Externsteine. Zwischen wissenschaftlicher Forschung und völkischer Deutung, Münster 2018}}}, volume = {{115}}, year = {{2019}}, } @misc{44023, author = {{Schroeter-Wittke, Harald}}, booktitle = {{Jahrbuch der Hessischen Kirchengeschichtlichen Vereinigung}}, pages = {{248--252}}, title = {{{Holger Pyka: Protestantische Karnevalsrezeption und Transformationen konfessioneller Mentalität. Stuttgart 2018}}}, volume = {{69}}, year = {{2019}}, } @misc{44029, author = {{Schroeter-Wittke, Harald}}, booktitle = {{Zeitschrift für Pädagogik und Theologie}}, pages = {{465--466}}, title = {{{Ingo Reuter: Surfaces│Oberflächen: Haut │ Spiegel │ Kleidung │ Wasser │ Bildschirm │ Erde. Würzburg 2019}}}, volume = {{71}}, year = {{2019}}, } @misc{44025, author = {{Schroeter-Wittke, Harald}}, booktitle = {{Jahrbuch für Westfälische Kirchengeschichte}}, pages = {{496--498}}, title = {{{Jürgen Bärsch / Reimund Haas (Hgg.), Christen an der Ruhr, Band 6, Münster 2018}}}, volume = {{115}}, year = {{2019}}, } @misc{44030, author = {{Schroeter-Wittke, Harald}}, booktitle = {{Der Kirchentag. Das Magazin}}, number = {{4}}, pages = {{8--9}}, title = {{{schaut hin (Mk 6,38). Ein Blick auf das Leitwort für den 3. Ökumenischen Kirchentag 2021 in Frankfurt am Main}}}, year = {{2019}}, } @misc{44027, author = {{Schroeter-Wittke, Harald}}, booktitle = {{Luther}}, pages = {{192--194}}, title = {{{Peter Zimmerling / Wolfgang Ratzmann / Armin Kohnle (Hg.): Martin Luther als Praktischer Theologe, Leipzig 2017}}}, volume = {{90}}, year = {{2019}}, } @misc{44028, author = {{Schroeter-Wittke, Harald}}, booktitle = {{Wege zum Menschen}}, pages = {{437--438}}, title = {{{Elisabeth von Thadden: Die berührungslose Gesellschaft, München 2018}}}, volume = {{71}}, year = {{2019}}, } @article{10014, abstract = {{The cubic, tetragonal, and orthorhombic phase of potassium niobate (KNbO3) are studied based on density-functional theory. Starting from the relaxed atomic geometries, we analyze the influence of self-energy corrections on the electronic band structure within the GW approximation. We find that quasiparticle shifts widen the direct (indirect) band gap by 1.21 (1.44), 1.58 (1.55), and 1.67 (1.64) eV for the cubic, tetragonal, and orthorhombic phase, respectively. By solving the Bethe-Salpeter equation, we obtain the linear dielectric function with excitonic and local-field effects, which turn out to be essential for good agreement with experimental data. From our results, we extract an exciton binding energy of 0.6, 0.5, and 0.5 eV for the cubic, tetragonal, and orthorhombic phase, respectively. Furthermore, we investigate the nonlinear second-harmonic generation (SHG) both theoretically and experimentally. The frequency-dependent second-order polarization tensor of orthorhombic KNbO3 is measured for incoming photon energies between 1.2 and 1.6 eV. In addition, calculations within the independent-(quasi)particle approximation are performed for the tetragonal and orthorhombic phase. The novel experimental data are in excellent agreement with the quasiparticle calculations and resolve persistent discrepancies between earlier experimental measurements and ab initio results reported in the literature.}}, author = {{Schmidt, Falko and Riefer, Arthur and Schmidt, Wolf Gero and Schindlmayr, Arno and Imlau, Mirco and Dobener, Florian and Mengel, Nils and Chatterjee, Sangam and Sanna, Simone}}, issn = {{2475-9953}}, journal = {{Physical Review Materials}}, number = {{5}}, publisher = {{American Physical Society}}, title = {{{Quasiparticle and excitonic effects in the optical response of KNbO3}}}, doi = {{10.1103/PhysRevMaterials.3.054401}}, volume = {{3}}, year = {{2019}}, } @article{29746, author = {{Nicholson, C. W. and Puppin, M. and Lücke, A. and Gerstmann, Uwe and Krenz, Marvin and Schmidt, Wolf Gero and Rettig, L. and Ernstorfer, R. and Wolf, M.}}, issn = {{2469-9950}}, journal = {{Physical Review B}}, number = {{15}}, publisher = {{American Physical Society (APS)}}, title = {{{Excited-state band mapping and momentum-resolved ultrafast population dynamics in In/Si(111) nanowires investigated with XUV-based time- and angle-resolved photoemission spectroscopy}}}, doi = {{10.1103/physrevb.99.155107}}, volume = {{99}}, year = {{2019}}, } @article{10015, author = {{Dues, Christof and Schmidt, Wolf Gero and Sanna, Simone}}, issn = {{2470-1343}}, journal = {{ACS Omega}}, pages = {{3850--3859}}, title = {{{Water Splitting Reaction at Polar Lithium Niobate Surfaces}}}, doi = {{10.1021/acsomega.8b03271}}, year = {{2019}}, } @article{26296, author = {{Sperling, Jan and Perez-Leija, Armando and Busch, Kurt and Silberhorn, Christine}}, issn = {{2469-9926}}, journal = {{Physical Review A}}, title = {{{Mode-independent quantum entanglement for light}}}, doi = {{10.1103/physreva.100.062129}}, year = {{2019}}, } @article{37288, abstract = {{An integrated chip with quantum state generation, active polarization manipulation, and precise time control is demonstrated.}}, author = {{Luo, Kai-Hong and Brauner, Sebastian and Eigner, Christof and Sharapova, Polina and Ricken, Raimund and Meier, Torsten and Herrmann, Harald and Silberhorn, Christine}}, issn = {{2375-2548}}, journal = {{Science Advances}}, keywords = {{Multidisciplinary}}, number = {{1}}, publisher = {{American Association for the Advancement of Science (AAAS)}}, title = {{{Nonlinear integrated quantum electro-optic circuits}}}, doi = {{10.1126/sciadv.aat1451}}, volume = {{5}}, year = {{2019}}, }