In:
Acta Physica Sinica, Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences, Vol. 48, No. 1 ( 1999), p. 154-
Abstract:
We have measured in detail the resistive transition and the isothermal current-voltage curves in the case of applied magnetic field parallel and perpendicular to the surface of the film up to 10T for an epitaxial YBa2Cu3O7-δ thin film, respectively. The comparative study of the irreversibility line from the R-T curves with the vortex-glass line from the I-V curves was made. The results showed that the irreversibility line determined from the different reduced resistivity criterion and vortex-glass line follow the same power law, H∝(T(0)-T(H))n, and n=4/3 for the vortex-glass line, n=3/2 for the irreversibility line. The irreversibility line is dependent not only on the different reduced resistivity criterion but also on the measuring current density. The vortex-glass line lies below the irreversibility line. The possible origin of the difference between such two lines was discussed.
Type of Medium:
Online Resource
ISSN:
1000-3290
,
1000-3290
Language:
Unknown
Publisher:
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Publication Date:
1999
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