A first-principles study on the Rashba effect in surface systems

被引：117

作者：

Nagano, Miki ^{[1
]}

Kodama, Ayaka ^{[1
]}

Shishidou, T. ^{[1
]}

Oguchi, T. ^{[1
,2
]}

机构：

[1] Hiroshima Univ, ADSM, Dept Quantum Matter, Higashihiroshima 7398530, Japan

[2] Hiroshima Univ, Inst Adv Mat Res, Higashihiroshima 7398530, Japan

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2009年 / 21卷 / 06期

关键词：

PHOTOELECTRON-SPECTROSCOPY; SI(111);

D O I：

10.1088/0953-8984/21/6/064239

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The Rashba effect in several surface systems, Au(111), Au(110), Ag(111), Sb(111) and Si(111)-Bi, is studied by means of first-principles relativistic density-functional calculations. The importance of the asymmetric behavior around the surface atom is emphasized as a crucial factor to determine the magnitude of Rashba spin splitting in addition to the size of the spin-orbit coupling. The Rashba effect at the Brillouin-zone boundary is generally described with time-reversal symmetry. Distinctive features in the spin splitting and spin direction for a two-dimensional hexagonal system are discussed with the use of symmetry in the double group of k.

引用

页数：8

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