Weakly coupled grain model of high-frequency losses in high T c superconducting thin films

3 October 1988

journal article
research article
Published by AIP Publishing in Applied Physics Letters

Vol. 53 (14) , 1343-1345
https://doi.org/10.1063/1.99976

Abstract

We propose a model of Josephson coupling between grains to explain the millimeter‐wave surface impedance of oriented, polycrystalline thin films of high T_c superconductors. An effective junction I_cR product and effective grain size are calculated based on recent measurements of the surface impedance. We suggest a criterion on film quality for the observation of losses intrinsic in the superconductor. The effects of crystalline orientation on surface impedance are considered.

Keywords

This publication has 5 references indexed in Scilit:

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Physical Review B, 1988
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