Spin-orbit-induced spin splittings in polar transition metal dichalcogenide monolayers

被引：400

作者：

Cheng, Y. C. ^{[1
]}

Zhu, Z. Y. ^{[1
]}

Tahir, M. ^{[1
]}

Schwingenschloegl, U. ^{[1
]}

机构：

[1] KAUST, PSE Div, Thuwal 239556900, Saudi Arabia

来源：

EPL | 2013年 / 102卷 / 05期

关键词：

D O I：

10.1209/0295-5075/102/57001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Rashba effect in quasi two-dimensional materials, such as noble metal surfaces and semiconductor heterostructures, has been investigated extensively, while interest in real two-dimensional systems has just emerged with the discovery of graphene. We present ab initio electronic structure, phonon, and molecular-dynamics calculations to study the structural stability and spin-orbit-induced spin splitting in the transition metal dichalcogenide monolayers MXY (M = Mo, W and X, Y = S, Se, Te). In contrast to the non-polar systems with X = Y, in the polar systems with X not equal Y the Rashba splitting at the Gamma-point for the uppermost valence band is caused by the broken mirror symmetry. An enhancement of the splitting can be achieved by increasing the spin-orbit coupling and/or the potential gradient. Copyright (C) EPLA, 2013

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共 32 条

[1] Giant spin splitting through surface alloying [J].

Ast, Christian R. ;

Henk, Juergen ;

Ernst, Arthur ;

Moreschini, Luca ;

Falub, Mihaela C. ;

Pacile, Daniela ;

Bruno, Patrick ;

Kern, Klaus ;

Grioni, Marco .

PHYSICAL REVIEW LETTERS, 2007, 98 (18)

[2] Phonons and related crystal properties from density-functional perturbation theory [J].

Baroni, S ;

de Gironcoli, S ;

Dal Corso, A ;

Giannozzi, P .

REVIEWS OF MODERN PHYSICS, 2001, 73 (02) :515-562

[3]

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

[4] Valley-selective circular dichroism of monolayer molybdenum disulphide [J].

Cao, Ting ;

Wang, Gang ;

Han, Wenpeng ;

Ye, Huiqi ;

Zhu, Chuanrui ;

Shi, Junren ;

Niu, Qian ;

Tan, Pingheng ;

Wang, Enge ;

Liu, Baoli ;

Feng, Ji .

NATURE COMMUNICATIONS, 2012, 3

[5] Quasiparticle band structure calculation of monolayer, bilayer, and bulk MoS2 [J].

Cheiwchanchamnangij, Tawinan ;

Lambrecht, Walter R. L. .

PHYSICAL REVIEW B, 2012, 85 (20)

[6] Doped silicene: Evidence of a wide stability range [J].

Cheng, Y. C. ;

Zhu, Z. Y. ;

Schwingenschloegl, U. .

EPL, 2011, 95 (01)

[7] Role of interlayer coupling in ultra thin MoS2 [J].

Cheng, Yingchun ;

Zhu, Zhiyong ;

Schwingenschloegl, Udo .

RSC ADVANCES, 2012, 2 (20) :7798-7802

[8] Two-Dimensional Nanosheets Produced by Liquid Exfoliation of Layered Materials [J].

Coleman, Jonathan N. ;

Lotya, Mustafa ;

O'Neill, Arlene ;

Bergin, Shane D. ;

King, Paul J. ;

Khan, Umar ;

Young, Karen ;

Gaucher, Alexandre ;

De, Sukanta ;

Smith, Ronan J. ;

Shvets, Igor V. ;

Arora, Sunil K. ;

Stanton, George ;

Kim, Hye-Young ;

Lee, Kangho ;

Kim, Gyu Tae ;

Duesberg, Georg S. ;

Hallam, Toby ;

Boland, John J. ;

Wang, Jing Jing ;

Donegan, John F. ;

Grunlan, Jaime C. ;

Moriarty, Gregory ;

Shmeliov, Aleksey ;

Nicholls, Rebecca J. ;

Perkins, James M. ;

Grieveson, Eleanor M. ;

Theuwissen, Koenraad ;

McComb, David W. ;

Nellist, Peter D. ;

Nicolosi, Valeria .

SCIENCE, 2011, 331 (6017) :568-571

[9] ELECTRONIC ANALOG OF THE ELECTROOPTIC MODULATOR [J].

DATTA, S ;

DAS, B .

APPLIED PHYSICS LETTERS, 1990, 56 (07) :665-667

[10] Ideal Two-Dimensional Electron Systems with a Giant Rashba-Type Spin Splitting in Real Materials: Surfaces of Bismuth Tellurohalides [J].

Eremeev, S. V. ;

Nechaev, I. A. ;

Koroteev, Yu M. ;

Echenique, P. M. ;

Chulkov, E. V. .

PHYSICAL REVIEW LETTERS, 2012, 108 (24)

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