Evolution of a hotspot in a thin BSCCO structured film |
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| Authors: | Sanyalak Niratisairak Tom H Johansen Susumu Katouda Takayuki Ishibashi |
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| Institution: | 1. Department of Physics, University of Oslo, P.O. Box 1048, Blindern, 0316 Oslo, Norway;2. Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan |
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| Abstract: | Two voltage jumps were found in the current–voltage characteristic of a thin superconducting film of Bi2Sr2CaCu2Ox at temperature 58 K. The fluorescent thermal imaging technique revealed a localized heat dissipation (hotspot) nucleated at the current causing the second jump, and the hotspots’ temperature is close to the critical temperature of the superconducting film. |
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