Unconventional dc Transport in Rashba Electron Gases

被引：36

作者：

Brosco, Valentina ^{[1
,2
]}

Benfatto, Lara ^{[1
,2
]}

Cappelluti, Emmanuele ^{[1
,2
]}

Grimaldi, Claudio ^{[3
]}

机构：

[1] Univ Roma La Sapienza, IISC CNR, Piazzale Aldo Moro 2, I-00185 Rome, Italy

[2] Univ Roma La Sapienza, Dept Phys, Piazzale Aldo Moro 2, I-00185 Rome, Italy

[3] Ecole Polytech Fed Lausanne, Lab Phys Complex Matter, Stn 3, CH-1015 Lausanne, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 116卷 / 16期

关键词：

SPIN; ABSORPTION; INTERFACE; PHASE; LIGHT;

D O I：

10.1103/PhysRevLett.116.166602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We discuss the transport properties of a disordered two-dimensional electron gas with strong Rashba spin-orbit coupling. We show that in the high-density regime where the Fermi energy overcomes the energy associated with spin-orbit coupling, dc transport is accurately described by a standard Drude's law, due to a nontrivial compensation between the suppression of backscattering and the relativistic correction to the quasiparticle velocity. On the contrary, when the system enters the opposite dominant spin-orbit regime, Drude's paradigm breaks down and the dc conductivity becomes strongly sensitive to the spin-orbit coupling strength, providing a suitable tool to test the entanglement between spin and charge degrees of freedom in these systems.

引用

页数：6

共 54 条

[1] Plasmon mass and Drude weight in strongly spin-orbit-coupled two-dimensional electron gases [J].

Agarwal, Amit ;

Chesi, Stefano ;

Jungwirth, T. ;

Sinova, Jairo ;

Vignale, G. ;

Polini, Marco .

PHYSICAL REVIEW B, 2011, 83 (11)

[2]

[Anonymous], 2000, Physics of Solids and Liquids

[3] Spin-orbit split two-dimensional electron gas with tunable Rashba and Fermi energy [J].

Ast, Christian R. ;

Pacile, Daniela ;

Moreschini, Luca ;

Falub, Mihaela C. ;

Papagno, Marco ;

Kern, Klaus ;

Grioni, Marco ;

Henk, Juergen ;

Ernst, Arthur ;

Ostanin, Sergey ;

Bruno, Patrick .

PHYSICAL REVIEW B, 2008, 77 (08)

[4] 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)

[5] Challenges for semiconductor spintronics [J].

Awschalom, David D. ;

Flatte, Michael E. .

NATURE PHYSICS, 2007, 3 (03) :153-159

[6] Emergence of non-centrosymmetric topological insulating phase in BiTeI under pressure [J].

Bahramy, M. S. ;

Yang, B. -J. ;

Arita, R. ;

Nagaosa, N. .

NATURE COMMUNICATIONS, 2012, 3

[7] Dominant Mobility Modulation by the Electric Field Effect at the LaAlO3/SrTiO3 Interface [J].

Bell, C. ;

Harashima, S. ;

Kozuka, Y. ;

Kim, M. ;

Kim, B. G. ;

Hikita, Y. ;

Hwang, H. Y. .

PHYSICAL REVIEW LETTERS, 2009, 103 (22)

[8] Tuning Spin-Orbit Coupling and Superconductivity at the SrTiO3/LaAlO3 Interface: A Magnetotransport Study [J].

Ben Shalom, M. ;

Sachs, M. ;

Rakhmilevitch, D. ;

Palevski, A. ;

Dagan, Y. .

PHYSICAL REVIEW LETTERS, 2010, 104 (12)

[9] Quantum transport in Rashba spin-orbit materials: a review [J].

Bercioux, Dario ;

Lucignano, Procolo .

REPORTS ON PROGRESS IN PHYSICS, 2015, 78 (10)

[10] Limit of the electrostatic doping in two-dimensional electron gases of LaXO3(X = Al, Ti)/SrTiO3 [J].

Biscaras, J. ;

Hurand, S. ;

Feuillet-Palma, C. ;

Rastogi, A. ;

Budhani, R. C. ;

Reyren, N. ;

Lesne, E. ;

Lesueur, J. ;

Bergeal, N. .

SCIENTIFIC REPORTS, 2014, 4

← 1 2 3 4 5 6 →