Quantum Hall effect in a layered disordered superconductor

Victor Kagalovsky; Baruch Horovitz; Yshai Avishai

doi:10.1016/j.physb.2005.01.167

Quantum Hall effect in a layered disordered superconductor

Victor Kagalovsky, Baruch Horovitz, Yshai Avishai

Department of Physics

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	611-613
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	359-361
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physb.2005.01.167
State	Published - 30 Apr 2005

Keywords

Layered disordered superconductor
Spin metal-insulator transition

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/j.physb.2005.01.167

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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.",

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AU - Horovitz, Baruch

AU - Avishai, Yshai

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N2 - 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.

AB - 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.

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KW - Spin metal-insulator transition

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IS - SPEC. ISS.

ER -

Quantum Hall effect in a layered disordered superconductor

Abstract

Keywords

ASJC Scopus subject areas

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