Journal Article

FZJ-2014-04135

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Bulk band structure of Bi$_{2}$Te$_{3}$

Michiardi, M. (Corresponding Author) ; Aguilera, I.FZJ* ; Bianchi, M. ; de Carvalho, V. E. ; Ladeira, L. O. ; Teixeira, N. G. ; Soares, E. A. ; Friedrich, C.FZJ* ; Blügel, S.FZJ* ; Hofmann, P.

2014
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/7838  doi:10.1103/PhysRevB.90.075105

Abstract: The bulk band structure of Bi2Te3 has been determined by angle-resolved photoemission spectroscopy and compared to first-principles calculations. We have performed calculations using the local density approximation (LDA) of density functional theory and the one-shot GW approximation within the all-electron full-potential linearized augmented-plane-wave (FLAPW) formalism, fully taking into account spin-orbit coupling. Quasiparticle effects produce significant changes in the band structure of Bi2Te3 when compared to LDA. Experimental and calculated results are compared in the spectral regions where distinct differences between the LDA and GW results are present. Overall a superior agreement with GW is found, highlighting the importance of many-body effects in the band structure of this family of topological insulators.

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Contributing Institute(s):

1. Quanten-Theorie der Materialien (IAS-1)
2. Quanten-Theorie der Materialien (PGI-1)

Research Program(s):

1. 422 - Spin-based and quantum information (POF2-422) (POF2-422)

Appears in the scientific report 2014

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Database coverage:
; ; Current Contents - Social and Behavioral Sciences ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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