Journal Article

FZJ-2021-06146

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Profiling spin and orbital texture of a topological insulator in full momentum space

Bentmann, H. ; Maaß, H. ; Braun, J. ; Seibel, C. ; Kokh, K. A. ; Tereshchenko, O. E. ; Schreyeck, S. ; Brunner, K. ; Molenkamp, L. W. ; Miyamoto, K. ; Arita, M. ; Shimada, K. ; Okuda, T. ; Kirschner, J. ; Tusche, C.FZJ* ; Ebert, H.FZJ* ; Minár, J. ; Reinert, F.

2021
Inst. Woodbury, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/29736  doi:10.1103/PhysRevB.103.L161107

Abstract: We investigate the coupled spin and orbital textures of the topological surface state in Bi2(Te,Se)3(0001) across full momentum space using spin- and angle-resolved photoelectron spectroscopy and relativistic one-step photoemission theory. For an approximately isotropic Fermi surface in Bi2Te2Se, the measured intensity and spin momentum distributions, obtained with linearly polarized light, qualitatively reflect the orbital composition and the orbital-projected in-plane spin polarization, respectively. In Bi2Te3, the in-plane lattice potential induces a hexagonal anisotropy of the Fermi surface, which manifests in an out-of-plane photoelectron spin polarization with a strong dependence on light polarization, excitation energy, and crystallographic direction.

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Contributing Institute(s):

1. Elektronische Eigenschaften (PGI-6)

Research Program(s):

1. 5211 - Topological Matter (POF4-521) (POF4-521)

Appears in the scientific report 2021

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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