Hysteretic flux dynamics in a detwinned YBa(2)Cu(3)O(7-delta ) crystal from SQUID picovoltmetermeasurements

We report measurements of resistivity hysteresis in both temperature and magnetic field performed on a detwinned YBa(2)Cu(3)O(7-delta) single crystal in the region of the vortex lattice melting transition. We have found evidence that the observed hysteresis cannot be explained by current-induced non...

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Published inIEEE transactions on applied superconductivity Vol. 7; no. 2; pp. 1158 - 1160
Main Authors Gordeev, S N, Volkozub, A V, de Groot, P A J, Gagnon, R, Taillefer, L, Khanin, V V, Matlashov, A N, Polyakov, Yu A, Slobodchikov, V Yu
Format Journal Article
LanguageEnglish
Published 01.06.1997
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Summary:We report measurements of resistivity hysteresis in both temperature and magnetic field performed on a detwinned YBa(2)Cu(3)O(7-delta) single crystal in the region of the vortex lattice melting transition. We have found evidence that the observed hysteresis cannot be explained by current-induced nonequilibrium effects. The measured voltage-current characteristics for the sample in the overheated state also display hysteretic behaviour. This strongly supports the idea that the vortex solid can be melted by transport current
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:1051-8223
DOI:10.1109/77.620697