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Effect of the Weak Links on the Surface Resistance of YBa2Cu3Ox Bulk Material

Published online by Cambridge University Press:  26 February 2011

J. Wosik ,
L. M. Xie ,
J. Halbritter ,
R. Chau ,
A. Samaan ,
J. C. Wolfe ,
V. Selvamanickam  and
K. Saláma
J. Wosik
Affiliation:
Texas Center for Superconductivity at University of Houston, Houston, Texas 77204.
L. M. Xie
Affiliation:
Texas Center for Superconductivity at University of Houston, Houston, Texas 77204.
J. Halbritter
Affiliation:
Texas Center for Superconductivity at University of Houston, Houston, Texas 77204.
R. Chau
Affiliation:
Texas Center for Superconductivity at University of Houston, Houston, Texas 77204.
A. Samaan
Affiliation:
Texas Center for Superconductivity at University of Houston, Houston, Texas 77204.
J. C. Wolfe
Affiliation:
Texas Center for Superconductivity at University of Houston, Houston, Texas 77204.
V. Selvamanickam
Affiliation:
Texas Center for Superconductivity at University of Houston, Houston, Texas 77204.
K. Saláma
Affiliation:
Texas Center for Superconductivity at University of Houston, Houston, Texas 77204.
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Abstract

Dc magnetic field, temperature, and magnetic history dependencies of the millimeter-wave surface resistance have been measured in high quality grain-aligned and in polycrystalline YBa2Cu3Ox bulk material. The measurements were carried at 75 GHz using the endplate of the cavity replacement method. The data is interpreted in terms of the presence of intra- and inter-grain types of weak links. The values of characteristic critical fields of the bulk and the weak link junctions are determined and discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 275: Symposium S – Layered Superconductors: Fabrication, Properties and Applications , 1992 , 895
Copyright
Copyright © Materials Research Society 1992

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