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Proceedings Paper

Evidence for grain boundary substructure in high-Tc superconductor thin films from Josephson photoresponse
Author(s): Giselher Schneider; T. P. O'Brien; Werner J. Blau; Peter G. Huggard; Wilhelm Prettl
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Paper Abstract

The Josephson photoresponse of granular high-Tc superconductor films to pulsed far infrared laser radiation has been investigated in magnetic fields of up to 3T. Its value is strongly influenced by fields less than 50 mT and shows hysteresis here, while no further changes occur for larger fields. It is shown that the field dependence directly yields information about the properties of intergrain weak links. These are found to have a strongly inhomogeneous critical current distribution.

Paper Details

Date Published: 9 February 1995
PDF: 7 pages
Proc. SPIE 2362, International Conference on Excitonic Processes in Condensed Matter, (9 February 1995); doi: 10.1117/12.200987
Show Author Affiliations
Giselher Schneider, Trinity College and Univ. Regensburg (Ireland)
T. P. O'Brien, Trinity College and Univ. Regensburg (Ireland)
Werner J. Blau, Trinity College and Univ. Regensburg (Ireland)
Peter G. Huggard, Trinity College and Univ. Regensburg (Ireland)
Wilhelm Prettl, Trinity College and Univ. Regensburg (Ireland)


Published in SPIE Proceedings Vol. 2362:
International Conference on Excitonic Processes in Condensed Matter
Jai Singh, Editor(s)

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