Higher-order contributions to the Rashba-Bychkov effect with application to the Bi/Ag(111) surface alloy

被引：120

作者：

Vajna, Sz ^{[1
]}

Simon, E. ^{[1
,2
]}

Szilva, A. ^{[1
]}

Palotas, K. ^{[1
]}

Ujfalussy, B. ^{[3
]}

Szunyogh, L. ^{[1
]}

机构：

[1] Budapest Univ Technol & Econ, Dept Theoret Phys, H-1111 Budapest, Hungary

[2] Eotvos Lorand Univ, Dept Phys, H-1518 Budapest, Hungary

[3] Hungarian Acad Sci, Inst Solid State Phys & Opt, Wigner Res Ctr Phys, H-1525 Budapest, Hungary

来源：

PHYSICAL REVIEW B | 2012年 / 85卷 / 07期

关键词：

INITIO MOLECULAR-DYNAMICS; AU(111); METALS; STATES;

D O I：

10.1103/PhysRevB.85.075404

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to explain the anisotropic Rashba-Bychkov effect observed in several metallic-surface-state systems, we use k . p perturbation theory with a simple group-theoretical analysis and construct effective Rashba Hamiltonians for different point groups up to third order in the wave number. We perform relativistic ab initio calculations for the (root 3 x root 3)R30 degrees Bi/Ag(111) surface alloy, and from the calculated splitting of the band dispersion we find evidence of the predicted third-order terms. Furthermore, we derive expressions for the corresponding third-order Rashba parameters to provide a simple explanation of the qualitative difference concerning the Rashba-Bychkov splitting of the surface states at Au(111) and Bi/Ag(111).

引用

页数：7

共 49 条

[11] Rashba-Type Spin-Orbit Splitting of Quantum Well States in Ultrathin Pb Films [J].

Dil, J. Hugo ;

Meier, Fabian ;

Lobo-Checa, Jorge ;

Patthey, Luc ;

Bihlmayer, Gustav ;

Osterwalder, Juerg .

PHYSICAL REVIEW LETTERS, 2008, 101 (26)

[12] Anomalous Hall effect in a two-dimensional electron gas with spin-orbit interaction [J].

Dugaev, VK ;

Bruno, P ;

Taillefumier, M ;

Canals, B ;

Lacroix, C .

PHYSICAL REVIEW B, 2005, 71 (22)

[13] Anisotropy effects on Rashba and topological insulator spin-polarized surface states: A unified phenomenological description [J].

Frantzeskakis, Emmanouil ;

Grioni, Marco .

PHYSICAL REVIEW B, 2011, 84 (15)

[14] Hexagonal Warping Effects in the Surface States of the Topological Insulator Bi2Te3 [J].

Fu, Liang .

PHYSICAL REVIEW LETTERS, 2009, 103 (26)

[15] Structural influence on the Rashba-type spin splitting in surface alloys [J].

Gierz, Isabella ;

Stadtmueller, Benjamin ;

Vuorinen, Johannes ;

Lindroos, Matti ;

Meier, Fabian ;

Dil, J. Hugo ;

Kern, Klaus ;

Ast, Christian R. .

PHYSICAL REVIEW B, 2010, 81 (24)

[16] Spin-orbit coupling in the L-gap surface states of Au(111): spin-resolved photoemission experiments and first-principles calculations [J].

Henk, J ;

Hoesch, M ;

Osterwalder, J ;

Ernst, A ;

Bruno, P .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2004, 16 (43) :7581-7597

[17] Spin polarization of the L-gap surface states on Au(111) [J].

Henk, J ;

Ernst, A ;

Bruno, P .

PHYSICAL REVIEW B, 2003, 68 (16)

[18] Role of spin-orbit coupling and hybridization effects in the electronic structure of ultrathin Bi films [J].

Hirahara, T. ;

Nagao, T. ;

Matsuda, I. ;

Bihlmayer, G. ;

Chulkov, E. V. ;

Koroteev, Yu. M. ;

Echenique, P. M. ;

Saito, M. ;

Hasegawa, S. .

PHYSICAL REVIEW LETTERS, 2006, 97 (14)

[19] Manipulating quantum-well states by surface alloying: Pb on ultrathin Ag films [J].

Hirahara, T. ;

Komorida, T. ;

Sato, A. ;

Bihlmayer, G. ;

Chulkov, E. V. ;

He, K. ;

Matsuda, I. ;

Hasegawa, S. .

PHYSICAL REVIEW B, 2008, 78 (03)

[20] Electronic structure and fermi surface of Bi(100) [J].

Hofmann, P ;

Gayone, JE ;

Bihlmayer, G ;

Koroteev, YM ;

Chulkov, EV .

PHYSICAL REVIEW B, 2005, 71 (19)

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