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Magnetic field dependence of Josephson photoresponse in high-Tc superconductor thin films

URN to cite this document:
urn:nbn:de:bvb:355-epub-169488
Schneider, G. ; Huggard, P. G. ; O'Brien, T. P. ; Blau, W. ; Prettl, Wilhelm
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Date of publication of this fulltext: 04 Oct 2010 12:29


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 50mT and shows a pronounced hysteresis here. At low bias current densities, jb < 10A/cm2, an applied field stimulates the photoresponse, while for jb > 100A/cm2 the photoresponse is ...

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