Quantum Hall effect in a layered disordered superconductor

Victor Kagalovsky, Baruch Horovitz, Yshai Avishai

Research output: Contribution to journalArticlepeer-review

Abstract

Layered singlet paired superconductors with disorder and broken time-reversal symmetry are studied. The phase diagram demonstrates quantization of spin Hall conductance. In terms of the average intergrain transmission and the interlayer tunnelling we find quantum Hall phases with spin Hall coefficients of σxyspin=0,2 separated by a spin metal phase. We identify a spin metal-insulator localization exponent as well as a spin conductivity exponent of ≈1.0. In presence of a Zeeman term an additional σxyspin=1 phase appears.

Original languageEnglish
Pages (from-to)611-613
Number of pages3
JournalPhysica B: Condensed Matter
Volume359-361
Issue numberSPEC. ISS.
DOIs
StatePublished - 30 Apr 2005

Keywords

  • Layered disordered superconductor
  • Spin metal-insulator transition

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