$π-$shifted magnetoconductance oscillations in mesoscopic superconducting-normal-heterostructures

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

Interference of proximity induced superconducting correlations in mesoscopic metallic rings is sensitive to the magnetic flux $Φ$ inside these rings. This is the reason for magnetoconductance oscillations in such systems. We detected experimentally and explained theoretically a novel effect: the phase of these oscillations can switch between 0 and $π$ depending on the resistance of intermetallic interfaces and temperature. The effect is due to a nontrivial interplay between the proximity induced enhancement of the local conductivity and the proximity induced suppression of the density of states at low energies.
4 Pages, 5 postscript figures. Submitted to Phys. Rev. Lett

Keywords

Superconductivity, Mesoscale and Nanoscale Physics

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/28175

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9803339
 http://arxiv.org/abs/cond-mat/9803339

Collections

arXiv