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Density of quasiparticle states for a two-dimensional disordered system: Metallic, insulating, and critical behavior in the class D thermal quantum Hall effect

Abstract:

We investigate numerically the quasiparticle density of states $\varrho(E)$ for a two-dimensional, disordered superconductor in which both time-reversal and spin-rotation symmetry are broken. As a generic single-particle description of this class of systems (symmetry class D), we use the Cho-Fisher version of the network model. This has three phases: a thermal insulator, a thermal metal, and a quantized thermal Hall conductor. In the thermal metal we find a logarithmic divergence in $\varrho(...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevB.75.245321

Authors


Mildenberger, A More by this author
Mirlin, AD More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Theoretical Physics
Journal:
Phys. Rev. B
Volume:
75
Issue:
24
Pages:
245321
Publication date:
2006-10-25
DOI:
EISSN:
1550-235X
ISSN:
1098-0121
URN:
uuid:9e4abc63-fe3a-4038-adc7-f41cba39b00a
Source identifiers:
10470
Local pid:
pubs:10470
Language:
English
Keywords:

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