Model of the microwave response in granular Bi‐Sr‐Ca‐Cu‐O thin films
作者:
B. E. Grabow,
B. G. Boone,
R. M. Sova,
期刊:
Journal of Applied Physics
(AIP Available online 1993)
卷期:
Volume 74,
issue 11
页码: 6985-6987
ISSN:0021-8979
年代: 1993
DOI:10.1063/1.355050
出版商: AIP
数据来源: AIP
摘要:
A model used to approximate the measured response of a Bi‐Sr‐Ca‐Cu‐O detector to both microwave frequency and HeNe laser light over a temperature range from zero up to the critical transition temperature of the superconductorTcis reported. The nonbolometric (microwave) response model is based on microwave enhancement of a thermal fluctuation voltage occurring in the networks of inherent Josephson junctions. Modeling the film as a distribution of granular connections with varying critical currents and temperatures yields results similar to those observed in recent microwave response measurements. These results may be useful when optimizing the nonbolometric response for detector applications.
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