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Superconductivity-induced Anderson localization

Katsanos, D. E. and Evangelou, S. N. and Lambert, C. J. (1998) Superconductivity-induced Anderson localization. Physical Review B, 58 (5). pp. 2442-2444. ISSN 0163-1829

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Abstract

We have studied the effect of a random superconducting order parameter on the localization of quasiparticles, by numerical finite-size scaling of the Bogoliubov-de Gennes tight-binding Hamiltonian. Anderson localization is obtained in d = 2 and a mobility edge where the states localize is observed in d = 3. The critical behavior and localization exponent are universal within error bars both for real and complex random order parameter. Experimentally these results imply a suppression of thr electronic contribution to thermal transport from states above the bulk energy gap.

Item Type: Article
Journal or Publication Title: Physical Review B
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 58098
Deposited By: ep_importer_pure
Deposited On: 23 Oct 2012 13:16
Refereed?: Yes
Published?: Published
Last Modified: 10 Apr 2014 00:07
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/58098

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