Abrupt Rotation of the Rashba Spin to the Direction Perpendicular to the Surface

被引：123

作者：

Sakamoto, Kazuyuki ^{[1
]}

Oda, Tatsuki ^{[2
]}

Kimura, Akio ^{[3
]}

Miyamoto, Koji ^{[3
]}

Tsujikawa, Masahito ^{[2
]}

Imai, Ayako ^{[1
]}

Ueno, Nobuo ^{[1
]}

Namatame, Hirofumi ^{[4
]}

Taniguchi, Masaki ^{[3
]}

Eriksson, P. E. J. ^{[5
]}

Uhrberg, R. I. G. ^{[5
]}

机构：

[1] Chiba Univ, Grad Sch Adv Integrat Sci, Chiba 2638522, Japan

[2] Kanazawa Univ, Grad Sch Nat Sci & Technol, Kanazawa, Ishikawa 9201192, Japan

[3] Hiroshima Univ, Grad Sch Sci, Higashihiroshima 7398526, Japan

[4] Hiroshima Univ, Hiroshima Synchrotron Radiat Ctr, Higashihiroshima 7390046, Japan

[5] Linkoping Univ, Dept Phys Chem & Biol, S-58183 Linkoping, Sweden

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 09期

基金：

瑞典研究理事会;

关键词：

ELECTRONIC-STRUCTURE; GRAPHENE; GAS; PSEUDOPOTENTIALS; AU(111); STATES; PHASE;

D O I：

10.1103/PhysRevLett.102.096805

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The polarization vector of the Rashba spin, which must be parallel to the two-dimensional (2D) plane in an ideal system, is found to change abruptly and definitely to the direction perpendicular to the surface at the K point of the Brillouin zone of a real hexagonal system, the Tl/Si(111)-(1x1) surface. This finding obtained experimentally by angle-resolved and spin-resolved photoemission measurements is fully confirmed by a first-principles theoretical calculation. We found that the abrupt rotation of the Rashba spin is simply understood by the 2D symmetry of the hexagonal structure.

引用

页数：4

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