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SYES: Symposium Frontiers of Electronic Structure Theory: Focus on Topology and Transport

SYES 5: Frontiers of Electronic Structure Theory: Focus on Topology and Transport III

SYES 5.11: Vortrag

Mittwoch, 9. März 2016, 18:00–18:15, H24

Theoretical investigations of magnetically doped topological insulators — •Jan Minar^1,2, 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