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Random matrix theory of the proximity effect in disordered wires.

Titov, M. and Schomerus, H. (2003) Random matrix theory of the proximity effect in disordered wires. Physical Review B, 67. 024410.

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    Abstract

    We study analytically the local density of states in a disordered normal-metal wire (N) at ballistic distance to a superconductor (S). Our calculation is based on a scattering-matrix approach, which concerns for wave-function localization in the normal metal, and extends beyond the conventional semiclassical theory based on Usadel and Eilenberger equations. We also analyze how a finite transparency of the NS interface modifies the spectral proximity effect and demonstrate that our results agree in the dirty diffusive limit with those obtained from the Usadel equation.

    Item Type: Article
    Journal or Publication Title: Physical Review B
    Subjects: UNSPECIFIED
    Departments: Faculty of Science and Technology > Physics
    ID Code: 677
    Deposited By: Dr Henning Schomerus
    Deposited On: 31 Oct 2007
    Refereed?: Yes
    Published?: Published
    Last Modified: 26 Jul 2012 18:18
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/677

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