Superconducting proximity effect and universal conductance fluctuations

Heikkila, Tero T. and Salomaa, Martti M. and Lambert, Colin J. (1999) Superconducting proximity effect and universal conductance fluctuations. Physical review B, 60 (13). pp. 9291-9294. ISSN 0163-1829

Full text not available from this repository.

Abstract

We examine universal conductance fluctuations (UCF's) in mesoscopic normal-superconducting-normal (N-S-N) structures using a numerical solution of the Bogoliubov-de Gennes equation. We discuss two cases depending on the presence ("open" structure) or absence ("closed" structure) of quasiparticle transmission. In contrast to N-S structures, where the onset of superconductivity increases fluctuations, we find that UCF's are suppressed by superconductivity for N-S-N structures. We demonstrate that the fluctuations in ''open'' and "closed" structures exhibit distinct responses to an applied magnetic field and to an imposed phase variation of the superconducting order parameter.

Item Type:
Journal Article
Journal or Publication Title:
Physical review B
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
58086
Deposited By:
Deposited On:
23 Oct 2012 08:30
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Apr 2020 02:16