Observation of skyrmions in a two-dimensional hole system

被引：7
|
作者：
Townsley, CM
Chughtai, R
Nicholas, RJ
Henini, M
机构：
[1] Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England
[2] Univ Nottingham, Dept Phys & Astron, Nottingham NG7 2RD, England
来源：
PHYSICAL REVIEW B | 2005年 / 71卷 / 07期
关键词：
D O I：
10.1103/PhysRevB.71.073303
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present magnetoreflectivity results indicating the observation of skyrmions in a two-dimensional hole system. The structure is chosen so that the complex valence-band structure causes a crossing of the lowest two spin-split Landau levels at fields near nu = 1. This reduces the Zeeman energy with respect to the Coulomb energy sufficiently to allow the formation of skyrmions. The formation of antiskyrmions at higher fields is rapidly suppressed due to the rapid divergence of the Landau levels at these magnetic fields.
引用
收藏
页数：4
相关论文
共 50 条
  • [1] Two-dimensional skyrmions on the sphere
    Scoccola, NN
    Bes, DR
    [J]. JOURNAL OF HIGH ENERGY PHYSICS, 1998, (09):
  • [2] Nonsingular vortex-skyrmions in a two-dimensional electron system
    Iordanskii, SV
    [J]. USPEKHI FIZICHESKIKH NAUK, 1998, 168 (02): : 140 - 143
  • [3] ELECTRICALLY CHARGED TWO-DIMENSIONAL SKYRMIONS
    Loginov, A. Yu.
    [J]. RUSSIAN PHYSICS JOURNAL, 2015, 57 (12) : 1732 - 1742
  • [4] Electrically Charged Two-Dimensional Skyrmions
    A. Yu. Loginov
    [J]. Russian Physics Journal, 2015, 57 : 1732 - 1742
  • [5] Direct observation of a two-dimensional hole gas at oxide interfaces
    Lee, H.
    Campbell, N.
    Lee, J.
    Asel, T. J.
    Paudel, T. R.
    Zhou, H.
    Lee, J. W.
    Noesges, B.
    Seo, J.
    Park, B.
    Brillson, L. J.
    Oh, S. H.
    Tsymbal, E. Y.
    Rzchowski, M. S.
    Eom, C. B.
    [J]. NATURE MATERIALS, 2018, 17 (03) : 231 - +
  • [6] Direct observation of a two-dimensional hole gas at oxide interfaces
    H. Lee
    N. Campbell
    J. Lee
    T. J. Asel
    T. R. Paudel
    H. Zhou
    J. W. Lee
    B. Noesges
    J. Seo
    B. Park
    L. J. Brillson
    S. H. Oh
    E. Y. Tsymbal
    M. S. Rzchowski
    C. B. Eom
    [J]. Nature Materials, 2018, 17 : 231 - 236
  • [7] The metalliclike conductivity of a two-dimensional hole system
    Hanein, Y
    Meirav, U
    Shahar, D
    Li, CC
    Tsui, DC
    Shtrikman, H
    [J]. PHYSICAL REVIEW LETTERS, 1998, 80 (06) : 1288 - 1291
  • [8] Observation of spin-orbit Berry phase in magnetoresistance of a two-dimensional hole antidot system
    Kang, Ning
    Suzuki, Kazuya
    Abe, Eisuke
    Hashimoto, Yoshiaki
    Lye, Yasuhiro
    Katsumoto, Shingo
    [J]. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2008, 40 (05): : 1051 - 1054
  • [9] Skyrmions and merons in two-dimensional antiferromagnetic systems
    Fernandes, R. L.
    Lopes, R. J. C.
    Pereira, A. R.
    [J]. SOLID STATE COMMUNICATIONS, 2019, 290 : 55 - 59
  • [10] Collapse of skyrmions in two-dimensional ferromagnets and antiferromagnets
    Cai, Liufei
    Chudnovsky, Eugene M.
    Garanin, D. A.
    [J]. PHYSICAL REVIEW B, 2012, 86 (02):
12345