[{"place":"Berlin, Heidelberg","citation":{"apa":"Friedrich, C., Şaşıoğlu, E., Müller, M., Schindlmayr, A., &#38; Blügel, S. (2014). Spin excitations in solids from many-body perturbation theory. In C. Di Valentin, S. Botti, &#38; M. Cococcioni (Eds.), <i>First Principles Approaches to Spectroscopic Properties of Complex Materials</i> (Vol. 347, pp. 259–301). Springer. <a href=\"https://doi.org/10.1007/128_2013_518\">https://doi.org/10.1007/128_2013_518</a>","bibtex":"@inbook{Friedrich_Şaşıoğlu_Müller_Schindlmayr_Blügel_2014, place={Berlin, Heidelberg}, series={ Topics in Current Chemistry}, title={Spin excitations in solids from many-body perturbation theory}, volume={347}, DOI={<a href=\"https://doi.org/10.1007/128_2013_518\">10.1007/128_2013_518</a>}, booktitle={First Principles Approaches to Spectroscopic Properties of Complex Materials}, publisher={Springer}, author={Friedrich, Christoph and Şaşıoğlu, Ersoy and Müller, Mathias and Schindlmayr, Arno and Blügel, Stefan}, editor={Di Valentin, Cristiana and Botti, Silvana and Cococcioni, Matteo}, year={2014}, pages={259–301}, collection={ Topics in Current Chemistry} }","short":"C. Friedrich, E. Şaşıoğlu, M. Müller, A. Schindlmayr, S. Blügel, in: C. Di Valentin, S. Botti, M. Cococcioni (Eds.), First Principles Approaches to Spectroscopic Properties of Complex Materials, Springer, Berlin, Heidelberg, 2014, pp. 259–301.","mla":"Friedrich, Christoph, et al. “Spin Excitations in Solids from Many-Body Perturbation Theory.” <i>First Principles Approaches to Spectroscopic Properties of Complex Materials</i>, edited by Cristiana Di Valentin et al., vol. 347, Springer, 2014, pp. 259–301, doi:<a href=\"https://doi.org/10.1007/128_2013_518\">10.1007/128_2013_518</a>.","ama":"Friedrich C, Şaşıoğlu E, Müller M, Schindlmayr A, Blügel S. Spin excitations in solids from many-body perturbation theory. In: Di Valentin C, Botti S, Cococcioni M, eds. <i>First Principles Approaches to Spectroscopic Properties of Complex Materials</i>. Vol 347.  Topics in Current Chemistry. Springer; 2014:259-301. doi:<a href=\"https://doi.org/10.1007/128_2013_518\">10.1007/128_2013_518</a>","ieee":"C. Friedrich, E. Şaşıoğlu, M. Müller, A. Schindlmayr, and S. Blügel, “Spin excitations in solids from many-body perturbation theory,” in <i>First Principles Approaches to Spectroscopic Properties of Complex Materials</i>, vol. 347, C. Di Valentin, S. Botti, and M. Cococcioni, Eds. Berlin, Heidelberg: Springer, 2014, pp. 259–301.","chicago":"Friedrich, Christoph, Ersoy Şaşıoğlu, Mathias Müller, Arno Schindlmayr, and Stefan Blügel. “Spin Excitations in Solids from Many-Body Perturbation Theory.” In <i>First Principles Approaches to Spectroscopic Properties of Complex Materials</i>, edited by Cristiana Di Valentin, Silvana Botti, and Matteo Cococcioni, 347:259–301.  Topics in Current Chemistry. Berlin, Heidelberg: Springer, 2014. <a href=\"https://doi.org/10.1007/128_2013_518\">https://doi.org/10.1007/128_2013_518</a>."},"page":"259-301","intvolume":"       347","publication_status":"published","publication_identifier":{"eisbn":["978-3-642-55068-3"],"isbn":["978-3-642-55067-6"],"eissn":["1436-5049"],"issn":["0340-1022"]},"has_accepted_license":"1","pmid":"1","doi":"10.1007/128_2013_518","date_updated":"2025-12-16T08:06:12Z","author":[{"full_name":"Friedrich, Christoph","last_name":"Friedrich","first_name":"Christoph"},{"first_name":"Ersoy","last_name":"Şaşıoğlu","full_name":"Şaşıoğlu, Ersoy"},{"full_name":"Müller, Mathias","last_name":"Müller","first_name":"Mathias"},{"id":"458","full_name":"Schindlmayr, Arno","orcid":"0000-0002-4855-071X","last_name":"Schindlmayr","first_name":"Arno"},{"full_name":"Blügel, Stefan","last_name":"Blügel","first_name":"Stefan"}],"volume":347,"editor":[{"first_name":"Cristiana","full_name":"Di Valentin, Cristiana","last_name":"Di Valentin"},{"first_name":"Silvana","full_name":"Botti, Silvana","last_name":"Botti"},{"full_name":"Cococcioni, Matteo","last_name":"Cococcioni","first_name":"Matteo"}],"status":"public","type":"book_chapter","isi":"1","file_date_updated":"2020-08-30T14:48:45Z","_id":"18471","series_title":" Topics in Current Chemistry","user_id":"16199","department":[{"_id":"296"},{"_id":"35"},{"_id":"15"},{"_id":"230"}],"year":"2014","quality_controlled":"1","title":"Spin excitations in solids from many-body perturbation theory","publisher":"Springer","date_created":"2020-08-27T21:00:45Z","abstract":[{"text":"Collective spin excitations form a fundamental class of excitations in magnetic materials. As their energy reaches down to only a few meV, they are present at all temperatures and substantially influence the properties of magnetic systems. To study the spin excitations in solids from first principles, we have developed a computational scheme based on many-body perturbation theory within the full-potential linearized augmented plane-wave (FLAPW) method. The main quantity of interest is the dynamical transverse spin susceptibility or magnetic response function, from which magnetic excitations, including single-particle spin-flip Stoner excitations and collective spin-wave modes as well as their lifetimes, can be obtained. In order to describe spin waves we include appropriate vertex corrections in the form of a multiple-scattering T matrix, which describes the coupling of electrons and holes with different spins. The electron–hole interaction incorporates the screening of the many-body system within the random-phase approximation. To reduce the numerical cost in evaluating the four-point T matrix, we exploit a transformation to maximally localized Wannier functions that takes advantage of the short spatial range of electronic correlation in the partially filled d or f orbitals of magnetic materials. The theory and the implementation are discussed in detail. In particular, we show how the magnetic response function can be evaluated for arbitrary k points. This enables the calculation of smooth dispersion curves, allowing one to study fine details in the k dependence of the spin-wave spectra. We also demonstrate how spatial and time-reversal symmetry can be exploited to accelerate substantially the computation of the four-point quantities. As an illustration, we present spin-wave spectra and dispersions for the elementary ferromagnet bcc Fe, B2-type tetragonal FeCo, and CrO2 calculated with our scheme. The results are in good agreement with available experimental data.","lang":"eng"}],"file":[{"content_type":"application/pdf","relation":"main_file","date_created":"2020-08-28T15:19:57Z","creator":"schindlm","date_updated":"2020-08-30T14:48:45Z","access_level":"closed","file_id":"18584","file_name":"Friedrich2014_Chapter_SpinExcitationsInSolidsFromMan.pdf","description":"© 2014 Springer-Verlag, Berlin, Heidelberg","file_size":1061365,"title":"Spin excitations in solids from many-body perturbation theory"}],"publication":"First Principles Approaches to Spectroscopic Properties of Complex Materials","ddc":["530"],"language":[{"iso":"eng"}],"external_id":{"pmid":["24577607"],"isi":["000356811000008"]}}]