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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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: Journal Article
Journal or Publication Title: Physical review B
Uncontrolled Keywords: /dk/atira/pure/researchoutput/libraryofcongress/qc
Departments: Faculty of Science and Technology > Physics
ID Code: 58098
Deposited By: ep_importer_pure
Deposited On: 23 Oct 2012 12:16
Refereed?: Yes
Published?: Published
Last Modified: 01 Jan 2020 08:07

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