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Observation of Kosterlitz‐Thouless Transition and Conductivity Fluctuation in Superconducting Ybco Thin Films

Published online by Cambridge University Press:  28 February 2011

Q. Y. Ying  and
H. S. Kwok
Q. Y. Ying
Affiliation:
State University of New York at Buffalo, Institute on Superconductivity, Amherst, NY. 14260
H. S. Kwok
Affiliation:
Also Department of Physics and Astronomy, SUNY at Buffalo, Amherst, NY 14260
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Abstract

Kosterlitz‐Thouless properties of laser deposited high Tc superconducting thin films of YBa2Cu3O7‐x were examined. The exponent of the power law dependence of V on I showed a “universal jump” at Tc. ID like conductivity fluctuation was also found at temperatures slightly above the mean‐field transition temperature Tco, which may be the result of imperfections of the sample.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 169: Symposium M – High Temperature Superconductors: Fundamental Properties and Novel Materials Processing , 1989 , 863
Copyright
Copyright © Materials Research Society 1990

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