TY  - JOUR
AU  - Michiardi, Matteo
AU  - Aguilera, Irene
AU  - Bianchi, Marco
AU  - de Carvalho, Vagner Eustáquio
AU  - Ladeira, Luiz Orlando
AU  - Teixeira, Nayara Gomes
AU  - Soares, Edmar Avellar
AU  - Friedrich, Christoph
AU  - Blügel, Stefan
AU  - Hofmann, Philip
TI  - Bulk band structure of Bi$_{2}$Te$_{3}$
JO  - Physical review / B
VL  - 90
IS  - 7
SN  - 1098-0121
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2014-04135
SP  - 075105
PY  - 2014
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000341256500001
DO  - DOI:10.1103/PhysRevB.90.075105
UR  - https://juser.fz-juelich.de/record/154918
ER  -