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Title: Resistance anomaly in disordered superconducting films.

Abstract

The authors report on a resistance anomaly in disordered superconducting films containing arrays of irregularly distributed nanoscale holes. At high driving currents, peaks appear in the resistance as a function of temperature, with peak values up to 2% above the classic normal-state resistance. The authors attribute the observed resistance anomaly to dissipation-induced granularity which enhances the contributions from fluctuation-induced reduction of the density of states of the quasiparticles. The granular feature of a disordered superconducting film originates from the inhomogeneous temperature distribution caused by the variation of the local dissipation and/or heat transfer.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC); National Science Foundation (NSF)
OSTI Identifier:
948797
Report Number(s):
ANL/MSD/JA-58576
Journal ID: ISSN 0003-6951; APPLAB; TRN: US200907%%201
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Appl. Phys. Lett.; Journal Volume: 90; Journal Issue: 7 ; 2007
Country of Publication:
United States
Language:
ENGLISH
Subject:
36 MATERIALS SCIENCE; ELECTRIC CONDUCTIVITY; SUPERCONDUCTING FILMS; ORDER PARAMETERS; HOLES

Citation Formats

Hua, J., Xiao, Z. L., Rosenmann, D., Beloborodov, I., Welp, U., Kwok, W. K., Crabtree, G. W., Materials Science Division, and Northern Illinois Univ. Resistance anomaly in disordered superconducting films.. United States: N. p., 2007. Web. doi:10.1063/1.2680068.
Hua, J., Xiao, Z. L., Rosenmann, D., Beloborodov, I., Welp, U., Kwok, W. K., Crabtree, G. W., Materials Science Division, & Northern Illinois Univ. Resistance anomaly in disordered superconducting films.. United States. doi:10.1063/1.2680068.
Hua, J., Xiao, Z. L., Rosenmann, D., Beloborodov, I., Welp, U., Kwok, W. K., Crabtree, G. W., Materials Science Division, and Northern Illinois Univ. Mon . "Resistance anomaly in disordered superconducting films.". United States. doi:10.1063/1.2680068.
@article{osti_948797,
title = {Resistance anomaly in disordered superconducting films.},
author = {Hua, J. and Xiao, Z. L. and Rosenmann, D. and Beloborodov, I. and Welp, U. and Kwok, W. K. and Crabtree, G. W. and Materials Science Division and Northern Illinois Univ.},
abstractNote = {The authors report on a resistance anomaly in disordered superconducting films containing arrays of irregularly distributed nanoscale holes. At high driving currents, peaks appear in the resistance as a function of temperature, with peak values up to 2% above the classic normal-state resistance. The authors attribute the observed resistance anomaly to dissipation-induced granularity which enhances the contributions from fluctuation-induced reduction of the density of states of the quasiparticles. The granular feature of a disordered superconducting film originates from the inhomogeneous temperature distribution caused by the variation of the local dissipation and/or heat transfer.},
doi = {10.1063/1.2680068},
journal = {Appl. Phys. Lett.},
number = 7 ; 2007,
volume = 90,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}