Spontaneously broken time-reversal symmetry in quantum dots

被引：17
|
作者：
Steffens, O [1 ]
Suhrke, M [1 ]
Rossler, U [1 ]
机构：
[1] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany
来源：
EUROPHYSICS LETTERS | 1998年 / 44卷 / 02期
关键词：
D O I：
10.1209/epl/i1998-00460-0
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present current-spin density-functional calculations for circular parabolic quantum dots in zero magnetic field. We find the possibility for broken time-reversal symmetry via exchange correlation with spontaneously induced orbital currents. For certain electron numbers, this results in new current textures which give rise to a finite magnetization even for ground states with vanishing total angular momentum.
引用
收藏
页码：222 / 228
页数：7
相关论文
共 50 条
  • [31] Broken time-reversal symmetry scattering at the Anderson transition
    Alcazar-Lopez, A.
    Mendez-Bermudez, J. A.
    Varga, Imre
    [J]. ANNALEN DER PHYSIK, 2009, 18 (12) : 896 - 900
  • [32] Chaotic Rydberg atoms with broken time-reversal symmetry
    Sacha, K
    Zakrzewski, J
    Delande, D
    [J]. PHYSICAL REVIEW LETTERS, 1999, 83 (15) : 2922 - 2925
  • [33] Fluctuating phase rigidity for a quantum chaotic system with partially broken time-reversal symmetry
    vanLangen, SA
    Brouwer, PW
    Beenakker, CWJ
    [J]. PHYSICAL REVIEW E, 1997, 55 (01): : R1 - R4
  • [34] Comment on "Critical behavior in disordered quantum systems modified by broken time-reversal symmetry"
    Janssen, M
    Shapiro, B
    Varga, I
    [J]. PHYSICAL REVIEW LETTERS, 1998, 81 (14) : 3048 - 3048
  • [35] Numerical study of spin quantum Hall transitions in superconductors with broken time-reversal symmetry
    Cui, QH
    Wan, X
    Yang, K
    [J]. PHYSICAL REVIEW B, 2004, 70 (09)
  • [36] Supercurrent rectification with time-reversal symmetry broken multiband superconductors
    Yerin, Yuriy
    Drechsler, Stefan-Ludwig
    Varlamov, A. A.
    Cuoco, Mario
    Giazotto, Francesco
    [J]. PHYSICAL REVIEW B, 2024, 110 (05)
  • [37] Consequences of Broken Time-Reversal Symmetry in Triplet Josephson Junctions
    Brydon, P. M. R.
    Iniotakis, C.
    Manske, Dirk
    Sigrist, M.
    [J]. 25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 5: SUPERCONDUCTIVITY, 2009, 150
  • [38] Densities of states, moments, and maximally broken time-reversal symmetry
    Haydock, Roger
    Nex, C. M. M.
    [J]. PHYSICAL REVIEW B, 2006, 74 (20):
  • [39] Dynamical invariants in systems with and without broken time-reversal symmetry
    Schuch, Dieter
    [J]. LATIN-AMERICAN SCHOOL OF PHYSICS XL ELAF: SYMMETRIES IN PHYSICS, 2011, 1334 : 291 - 340
  • [40] Bogoliubov Fermi Surfaces in Superconductors with Broken Time-Reversal Symmetry
    Agterberg, D. F.
    Brydon, P. M. R.
    Timm, C.
    [J]. PHYSICAL REVIEW LETTERS, 2017, 118 (12)
12345