Quantum Hall effects in layered disordered superconductors

V. Kagalovsky; B. Horovitz; Y. Avishai

doi:10.1103/PhysRevLett.93.246802

Quantum Hall effects in layered disordered superconductors

介观与纳米尺度物理 2009-11-10 v1 超导电性

作者: V. Kagalovsky , B. Horovitz , Y. Avishai

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摘要

Layered singlet paired superconductors with disorder and broken time reversal symmetry are studied. The phase diagram demonstrates charge-spin separation in transport. In terms of the average intergrain transmission and the interlayer tunnelling we find quantum Hall phases with spin Hall coefficients of 0 and 2 separated by a spin metal phase. We identify a spin metal-insulator localization exponent as well as a spin conductivity exponent of ~0.9. In presence of a Zeeman term an additional phase with spin Hall coefficient of 1 appears.

关键词

quantum spin hall effect quantum hall effect spin hall effect

引用

@article{arxiv.cond-mat/0403207,
  title  = {Quantum Hall effects in layered disordered superconductors},
  author = {V. Kagalovsky and B. Horovitz and Y. Avishai},
  journal= {arXiv preprint arXiv:cond-mat/0403207},
  year   = {2009}
}