Wigner crystal of a two-dimensional electron gas with a strong spin-orbit interaction

被引：16
|
作者：
Silvestrov, P. G. [1 ,2 ,3 ]
Entin-Wohlman, O. [4 ,5 ]
机构：
[1] Free Univ Berlin, Dept Phys, D-14195 Berlin, Germany
[2] Free Univ Berlin, Dahlem Ctr Complex Quantum Syst, D-14195 Berlin, Germany
[3] Tech Univ Carolo Wilhelmina Braunschweig, Inst Math Phys, D-38106 Braunschweig, Germany
[4] Ben Gurion Univ Negev, Dept Phys, IL-84105 Beer Sheva, Israel
[5] Tel Aviv Univ, Raymond & Beverly Sackler Sch Phys & Astron, IL-69978 Tel Aviv, Israel
来源：
PHYSICAL REVIEW B | 2014年 / 89卷 / 15期
关键词：
CRYSTALLIZATION; TRANSITION; STATE;
D O I：
10.1103/PhysRevB.89.155103
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
TheWigner-crystal phase of two-dimensional electrons interacting via the Coulomb repulsion and subject to a strong Rashba spin-orbit coupling is investigated. For low enough electronic densities the spin-orbit band splitting can be larger than the zero-point energy of the lattice vibrations. Then the degeneracy of the lower subband results in a spontaneous symmetry breaking of the vibrational ground state. The 60. rotational symmetry of the triangular (spin-orbit coupling free) structure is lost, and the unit cell of the new lattice contains two electrons. Breaking the rotational symmetry also leads to a (slight) squeezing of the underlying triangular lattice.
引用
收藏
页数：7
相关论文
共 50 条
  • [1] Spin-orbit interaction and spin relaxation in a two-dimensional electron gas
    Studer, M.
    Schoen, S.
    Ensslin, K.
    Salis, G.
    PHYSICAL REVIEW B, 2009, 79 (04)
  • [2] Spin coherence in a two-dimensional electron gas with Rashba spin-orbit interaction
    Pareek, TP
    Bruno, P
    PHYSICAL REVIEW B, 2002, 65 (24): : 1 - 4
  • [3] Edge spin currents in two-dimensional electron gas with spin-orbit interaction
    Sablikov V.A.
    Sukhanov A.A.
    Bulletin of the Russian Academy of Sciences: Physics, 2010, 74 (1) : 9 - 12
  • [4] Two-dimensional superconductivity with strong spin-orbit interaction
    Yip, SK
    PHYSICAL REVIEW B, 2002, 65 (14): : 1 - 4
  • [5] Weak antilocalization and spin-orbit interaction in a two-dimensional electron gas
    Spirito, D.
    Di Gaspare, L.
    Evangelisti, F.
    Di Gaspare, A.
    Giovine, E.
    Notargiacomo, A.
    PHYSICAL REVIEW B, 2012, 85 (23):
  • [6] Magnetotransport in a two-dimensional electron gas in the presence of spin-orbit interaction
    Wang, XF
    Vasilopoulos, P
    PHYSICAL REVIEW B, 2003, 67 (08):
  • [7] Lifetimes of a two-dimensional electron gas in the presence of spin-orbit interaction
    Xu, W
    Vasilopoulos, P
    Wang, XF
    SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 2004, 19 (02) : 224 - 229
  • [8] Transport equations for a two-dimensional electron gas with spin-orbit interaction
    Mishchenko, EG
    Halperin, BI
    PHYSICAL REVIEW B, 2003, 68 (04)
  • [9] Anisotropic plasmons in a two-dimensional electron gas with spin-orbit interaction
    Badalyan, S. M.
    Matos-Abiague, A.
    Vignale, G.
    Fabian, J.
    PHYSICAL REVIEW B, 2009, 79 (20):
  • [10] Spin-orbit interaction in a two-dimensional electron gas: A SU(2) formulation
    Raimondi, Roberto
    Schwab, Peter
    Gorini, Cosimo
    Vignale, Giovanni
    ANNALEN DER PHYSIK, 2012, 524 (3-4)
12345