Journal Article

FZJ-2022-02673

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png One-dimensional Rashba states with unconventional spin texture in Bi chains

Sheverdyaeva, P. M. ; Pacilè, D. (Corresponding author) ; Topwal, D. ; Manju, U. ; Papagno, M. ; Feyer, V.FZJ* ; Jugovac, M. ; Zamborlini, G. ; Cojocariu, I.FZJ* ; Tusche, C.FZJ* ; Tan, X. L. ; Hagiwara, K.FZJ* ; Chen, Y.-J.FZJ* ; Fujii, J. ; Moras, P. ; Ferrari, L. ; Vescovo, E. ; Bihlmayer, G.FZJ* ; Carbone, C.

2022
Inst. Woodbury, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/31457  doi:10.1103/PhysRevB.106.045108

Abstract: Spin-polarized electrons confined in low-dimensional structures are of high interest for spintronics applications. Here, we investigate the electronic structure of an ordered array of Bi monomer and dimer chains on the Ag(110) surface. By means of spin-resolved photoemission spectroscopy, we find Rashba-Bychkov split bands crossing the Fermi level with one-dimensional constant energy contours. These bands are up-spin polarized for positive wave vectors and down-spin polarized for negative wave vectors, at variance with the Rashba-Bychkov model that predicts a pair of states with opposite spin in each half of the surface Brillouin zone. Density functional theory shows that spin-selective hybridization with the Ag bulk bands originates this unconventional spin texture.

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Contributing Institute(s):

1. Quanten-Theorie der Materialien (PGI-1)
2. Elektronische Eigenschaften (PGI-6)
3. Quanten-Theorie der Materialien (IAS-1)
4. Plasmaphysik (IEK-4)

Research Program(s):

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

Appears in the scientific report 2022

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