- Autor(in)
- Sponsor(in)
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Deutschland. Bundesministerium für Forschung und Technologie
- Referenz
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1 H. Zijlstra, Experimental Methods in Magnetism 2, Selected Topics in Solid State Physics 9, E. P. Wohlfarth (ed.), North Holland Publishing Company
2 R. G. Humphreys, private communication
3 P. Berberich, J. Tate, W. Dietsche, H. Kinder, Appl. Phys. Lett. 53 (1988) 925
4 P. Brüll, D. Kirchgässner, P. Leiderer, Physica C, 182 (1991) 339
5 P. Güthner, E. Schreck, K. Dransfeld, U. Ch. Fischer, in: Scanning Tunneling Microscopy and related methods, R. J. Behm et al. (eds.), Kluwer Academic Publishers, The Netherlands 1990, p. 507
- Seitenbereich
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0243 - 0247
- Schlagwort(e)
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<KWD>HTc
Instability
Magnetooptic
- Zusammenfsg.
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During investigations of the magnetic flux dynamics in thin superconducting YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-x</sub> films we have observed the spontaneous formation of a damage in the film, apparently induced by the applied magnetic field of 0.1 <I>T</I>. The damage developed within less than 40 ms (the time resolution of the experiment) and showed up in the magnetiooptically recorded image of the flux above the sample as a path for massive flux penetration. A subsequent analysis revealed a 1 μm wide gap in the YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-x</sub> film which had developed over a major portion of the 1 · 1 cm<sup>2</sup> sample. It is suggested that the film locally melted as a result of an instability of the superconductor in the critical state.
- Artikel-Typen
- Forschungsartikel