Observation of Thermal Fluctuations in Superconducting Microbridges
- 9 September 1974
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 33 (11) , 641-644
- https://doi.org/10.1103/physrevlett.33.641
Abstract
Thermal fluctuations of the type described by Langer and Ambegaokar and by McCumber and Halperin have been observed in superconducting thin-film rings containing microbridge sections. A peak in the fluctuation rate was found near the transition temperature. The temperature dependence of the observed rates is in agreement with the McCumber-Halperin fluctuation-rate equations and the deduced parameters are consistent with the theory.Keywords
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