1 March 1995 Investigation of high-Tc superconducting tunnel junction after laser radiation processing
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Proceedings Volume 2498, Laser Methods of Surface Treatment and Modification: ALT '94 International Conference; (1995) https://doi.org/10.1117/12.203615
Event: Laser Methods of Surface Treatment and Modification: ALT '94 International Conference, 1994, Konstanz, Germany
Abstract
We investigate dynamic resistance (dV/dI) of high-Tc superconducting thin films and tunnel junction after laser radiation processing. The films of YBaCuO were prepared by laser and magnetron ablation on Al2O3 substrates. The tunnel junctions were made by fine silver wires attached to the processing surfaces. The resistance (dV/dI) was determined by a four-probe measurement. The YAG laser operating in Q-switched mode was used to interact with superconductors. The anomaly is observed in the current-voltage curve of the junction after radiation interaction. We observe hysteresis in the shape of V(I) curve. These effects are not observed without laser radiation interaction and in this case the behavior of tunnel junction is described for the standard BCS theory.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
U. U. Broslavez, A. A. Fomitchev, Mikhail A. Yakshin, "Investigation of high-Tc superconducting tunnel junction after laser radiation processing", Proc. SPIE 2498, Laser Methods of Surface Treatment and Modification: ALT '94 International Conference, (1 March 1995); doi: 10.1117/12.203615; https://doi.org/10.1117/12.203615
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