Voltage noise measurement of the vortex mean free path in superconducting granular tin films

The results of simultaneous current--voltage and voltage noise measurements on granular Sn films in the region of the superconducting transition are presented. Interpretation of the results in terms of a phase-slip shot noise demonstrates that vortex motion is uniform only over some characteristic l...

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Bibliographic Details
Published in:Physical review. B, Condensed matter Condensed matter, 1982-07, Vol.26 (1), p.449-451
Main Authors: Knoedler, C. M., Voss, Richard F.
Format: Article
Language:English
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Summary:The results of simultaneous current--voltage and voltage noise measurements on granular Sn films in the region of the superconducting transition are presented. Interpretation of the results in terms of a phase-slip shot noise demonstrates that vortex motion is uniform only over some characteristic length. This effective mean free path increases as the temp. is lowered and is probably dominated by vortex--antivortex recombination. 11 ref.--AA
ISSN:0163-1829
DOI:10.1103/PhysRevB.26.449