Regensburg 2016 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 62: Frontiers of Electronic Structure Theory: Focus on Topology and Transport III
O 62.11: Vortrag
Mittwoch, 9. März 2016, 18:00–18:15, H24
Theoretical investigations of magnetically doped topological insulators — •Jan Minar1,2, Jurgen Braun1, and Hubert Ebert1 — 1LMU München, Germany — 2University of West Bohemia, Plzen, Czech Rep.
Band gap opening of topological surface states due to magnetic doping are the subject of a long standing discussion. However, in spite of the progress made during the last years in this field there are still phenomena that are poorly understood and many open issues to be addressed. In several cases, like for example Mn doped Bi2Se3 band gap opening does not seem to be of magnetic origin. Here we will present several examples detailed theoretical studies on various bulk as well as surface doped topological insulators by means of the SPR-KKR band structure method. Our results will be discussed in a direct comparison with the corresponding ARPES [1] as well as XAS and XMCD [2,3] experimental data.
[1] J. Sanchez-Barriga et al., Nat. Communications, submitted (2015) [2] A. Ney et al., in preparation [3] J. Honolka et al., in preparation