Giant spin splitting through surface alloying

被引：720

作者：

Ast, Christian R. ^{[1
]}

Henk, Juergen

Ernst, Arthur

Moreschini, Luca

Falub, Mihaela C.

Pacile, Daniela

Bruno, Patrick

Kern, Klaus

Grioni, Marco

机构：

[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

[2] Ecole Polytech Fed Lausanne, Inst Phys Nanostruct, CH-1015 Lausanne, Switzerland

[3] Max Planck Inst Mikrostrukturphys, D-06120 Halle, Saale, Germany

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.98.186807

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The long-range ordered surface alloy Bi/Ag(111) is found to exhibit a giant spin splitting of its surface electronic structure due to spin-orbit coupling, as is determined by angle-resolved photoelectron spectroscopy. First-principles electronic structure calculations fully confirm the experimental findings. The effect is brought about by a strong in-plane gradient of the crystal potential in the surface layer, in interplay with the structural asymmetry due to the surface-potential barrier. As a result, the spin polarization of the surface states is considerably rotated out of the surface plane.

引用

页数：4

共 24 条

[1]

Ast C. R., CONDMAT0509509

[2]

BYCHKOV YA, 1984, JETP LETT+, V39, P78

[3]

CERCELLIER H, 2006, PHYS REV B, V73

[4] SPIN-ORBIT COUPLING EFFECTS IN ZINC BLENDE STRUCTURES [J].

DRESSELHAUS, G .

PHYSICAL REVIEW, 1955, 100 (02) :580-586

[5] Manipulation of the spin-orbit coupling using the Dirac equation for spin-dependent potentials [J].

Ebert, H ;

Freyer, H ;

Deng, M .

PHYSICAL REVIEW B, 1997, 56 (15) :9454-9460

[6] Giant spin-orbit bowing in GaAs1-xBix [J].

Fluegel, B. ;

Francoeur, S. ;

Mascarenhas, A. ;

Tixier, S. ;

Young, E. C. ;

Tiedje, T. .

PHYSICAL REVIEW LETTERS, 2006, 97 (06)

[7] Rare gases on noble-metal surfaces:: An angle-resolved photoemission study with high energy resolution [J].

Forster, F ;

Hüfner, S ;

Reinert, F .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (38) :14692-14698

[8] 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

[9] Spin polarization of the L-gap surface states on Au(111): a first-principles investigation [J].

Henk, J ;

Ernst, A ;

Bruno, P .

SURFACE SCIENCE, 2004, 566 :482-485

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

Henk, J ;

Ernst, A ;

Bruno, P .

PHYSICAL REVIEW B, 2003, 68 (16)

← 1 2 3 →