Hysteretic flux dynamics in a detwinned YBa/sub 2/Cu/sub 3/O/sub 7-δ/ crystal from SQUID picovoltmeter measurements
| Autor: | P.A.J. de Groot, Vladimir Viktorovich Khanin, Louis Taillefer, Yu.A. Polyakov, A.N. Matlashov, V. Yu. Slobodchikov, A.V. Volkozub, Sergey N. Gordeev, Robert Gagnon |
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| Rok vydání: | 1997 |
| Předmět: |
Materials science
High-temperature superconductivity Condensed matter physics Magnetoresistance Condensed Matter Physics Magnetic hysteresis Electronic Optical and Magnetic Materials Magnetic field Vortex law.invention Hysteresis law Electrical resistivity and conductivity Condensed Matter::Superconductivity Electrical and Electronic Engineering Single crystal |
| Zdroj: | IEEE Transactions on Appiled Superconductivity. 7:1158-1160 |
| ISSN: | 1051-8223 |
| DOI: | 10.1109/77.620697 |
| Popis: | We report measurements of resistivity hysteresis in both temperature and magnetic field performed on a detwinned YBa/sub 2/Cu/sub 3/O/sub 7-/spl 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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