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Nonvortical Rashba Spin Structure on a Surface with C-1h Symmetry SCIE SCOPUS

Title
Nonvortical Rashba Spin Structure on a Surface with C-1h Symmetry
Authors
Annese, EKuzumaki, TMuller, BYamamoto, YNakano, HKato, HAraki, AOhtaka, MAoki, TIshikawa, HHayashida, TOsiecki, JRMiyamoto, KTakeichi, YHarasawa, AYaji, KShirasawa, TNittoh, KYang, WMiki, KOda, TYeom, HWSakamoto, K
Date Issued
2016-06-30
Publisher
AMER PHYSICAL SOC
Abstract
A totally anisotropic peculiar Rashba-Bychkov (RB) splitting of electronic bands was found on the Tl/Si(110)-(1 x 1) surface with C-1h symmetry by angle-and spin-resolved photoelectron spectroscopy and first-principles theoretical calculation. The constant energy contour of the upper branch of the RB split band has a warped elliptical shape centered at a k point located between (Gamma) over bar and the edge of the surface Brillouin zone, i.e., at a point without time-reversal symmetry. The spin-polarization vector of this state is in-plane and points almost the same direction along the whole elliptic contour. This novel nonvortical RB spin structure is confirmed as a general phenomenon originating from the C-1h symmetry of the surface.
URI
https://oasis.postech.ac.kr/handle/2014.oak/37463
DOI
10.1103/PhysRevLett.117.016803
ISSN
0031-9007
Article Type
Article
Citation
PHYSICAL REVIEW LETTERS, vol. 117, no. 1, 2016-06-30
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