Current-voltage characteristics of YBaCuO-films extracted from relaxation measurements with a SQUID

By measuring the time dependence of a supercurrent induced in a ring patterned YBaCuO-film with a specially designed SQUID-magnetometer, isothermal current voltage (I–V)-characteristics can be determined. Combining this technique with standard transport measurements allows to obtain I–V characterist...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 1994-12, Vol.235, p.2679-2680
Main Authors: Heinzel, Ch, Häring, J., Xiao, Z.L., Ziemann, P.
Format: Article
Language:English
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Summary:By measuring the time dependence of a supercurrent induced in a ring patterned YBaCuO-film with a specially designed SQUID-magnetometer, isothermal current voltage (I–V)-characteristics can be determined. Combining this technique with standard transport measurements allows to obtain I–V characteristics spanning a range of V over 12 decades. The temperature dependence of the characteristics strongly supports a transition into a vortex-glass.
ISSN:0921-4534
1873-2143
DOI:10.1016/0921-4534(94)92560-7