FREQUENCY-DEPENDENCE OF THE IRREVERSIBILITY TEMPERATURE IN Y-BA-CU-O

Authors
WOLFUS Y PROZOROV R YESHURUN Y SHAULOV A ABULAFIA Y TSAMERET A RUNGE K KONCZYKOWSKI M FEIGLMAN M
Citation
Y. Wolfus et al., FREQUENCY-DEPENDENCE OF THE IRREVERSIBILITY TEMPERATURE IN Y-BA-CU-O, Physica. C, Superconductivity, 235, 1994, pp. 2719-2720
Citations number
10
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
235
Year of publication
1994
Part
4
Pages
2719 - 2720
Database
ISI
SICI code
0921-4534(1994)235:<2719:FOTITI>2.0.ZU;2-B
Abstract
We study the frequency dependence of the irreversibility temperature T i,, in single crystal, thin film and ceramic Y-Ba-Cu-O samples. T-irr, measured by the onset of third harmonic signal, depends weakly on fre quency for crystals, moderately for thin films and strongly for cerami c samples. The data is analyzed in the framework of the flux creep and the vortex-glass models. Although we cannot rule out the flux creep s cenario, the data is better described by the vortex-glass phase transi tion model.