Midgap states of a two-dimensional antiferromagnetic Mott-insulator: Electronic structure of meron vortices

被引：9
|
作者：
John, S [1 ]
Berciu, M [1 ]
Golubentsev, A [1 ]
机构：
[1] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada
来源：
EUROPHYSICS LETTERS | 1998年 / 41卷 / 01期
关键词：
D O I：
10.1209/epl/i1998-00111-0
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We demonstrate from first principles that ferromagnetic core, meron vortex configurations of the spin-1/2 antiferromagnet in two-dimensions give rise to midgap electronic states in the Mott-Hubbard charge gap. Merons are collective mode excitations of the antiferromagnet and are induced by doping the system with charge carriers. They are the topological analogs of charged bosonic domain wall solitons in one-dimension.
引用
收藏
页码：31 / 36
页数：6
相关论文
共 50 条
  • [1] Mott-insulator transition in a two-dimensional atomic Bose gas
    Spielman, I. B.
    Phillips, W. D.
    Porto, J. V.
    PHYSICAL REVIEW LETTERS, 2007, 98 (08)
  • [2] Superfluid to Mott-insulator transition in an anisotropic two-dimensional optical lattice
    Polak, T. P.
    Kopec, T. K.
    ANNALEN DER PHYSIK, 2008, 17 (12) : 947 - 954
  • [3] Mott-Insulator to Peierls Insulator Transition in the Two-Dimensional Holstein-Hubbard Model
    Debnath, Debika
    Chatterjee, Ashok
    MATERIALS TODAY-PROCEEDINGS, 2022, 66 : 3370 - 3372
  • [4] Mott-insulator transition for ultracold fermions in two-dimensional optical lattices
    Goldman, N.
    PHYSICAL REVIEW A, 2008, 77 (05):
  • [5] Mott-Insulator to Peierls Insulator Transition in the Two-Dimensional Holstein-Hubbard Model
    Debnath, Debika
    Chatterjee, Ashok
    CONDENSED MATTER PHYSICS, CMDAYS 2021, 2022, : 3370 - 3372
  • [6] Electronic structure of the two-dimensional Heisenberg antiferromagnet VOCl: A multiorbital Mott insulator
    Glawion, S.
    Scholz, M. R.
    Zhang, Y. -Z.
    Valenti, R.
    Saha-Dasgupta, T.
    Klemm, M.
    Hemberger, J.
    Horn, S.
    Sing, M.
    Claessen, R.
    PHYSICAL REVIEW B, 2009, 80 (15)
  • [7] Adiabatic melting of two-component Mott-insulator states
    Rodriguez, M.
    Clark, S. R.
    Jaksch, D.
    PHYSICAL REVIEW A, 2008, 77 (04):
  • [8] Mott-insulator phase of coupled one-dimensional atomic gases in a two-dimensional optical lattice
    Gangardt, DM
    Pedri, P
    Santos, L
    Shlyapnikov, GV
    PHYSICAL REVIEW LETTERS, 2006, 96 (04)
  • [9] Charged bosons in a doped Mott insulator: Electronic properties of domain-wall solitons and meron vortices
    Berciu, M
    John, S
    PHYSICAL REVIEW B, 1998, 57 (16): : 9521 - 9543
  • [10] Magnon heat transport in a two-dimensional Mott insulator
    Wang, Wen O.
    Ding, Jixun K.
    Moritz, Brian
    Huang, Edwin W.
    Devereaux, Thomas P.
    PHYSICAL REVIEW B, 2022, 105 (16)
12345