Thermal metal in network models of a disordered two-dimensional superconductor

J. T. Chalker, N. Read, V. Kagalovsky, V. Kagalovsky, B. Horovitz, Y. Avishai, A. W. Ludwig

Research output: Contribution to journalArticlepeer-review

72 Scopus citations

Abstract

We study the symmetry class for localization which arises from models of noninteracting quasiparticles in disordered superconductors that have neither time-reversal nor spin-rotation invariance. Two-dimensional systems in this category, which is known as class D, can display phases with three different types of quasiparticle dynamics: metallic, localized, or with a quantized (thermal) Hall conductance. Correspondingly, they can show a variety of delocalization transitions. We illustrate this behavior by investigating numerically the phase diagrams of network models with the appropriate symmetry and show the appearance of the metallic phase.

Original languageEnglish GB
Article number012506
Pages (from-to)125061-125064
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume65
Issue number1
StatePublished - 1 Jan 2002

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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