FREQUENCY-DEPENDENCE OF THE INTERGRANULAR ENERGY-LOSS PEAK IN AC MAGNETIC-SUSCEPTIBILITY OF HIGH-T-C SUPERCONDUCTORS

Authors
LEE CY KAO YH
Citation
Cy. Lee et Yh. Kao, FREQUENCY-DEPENDENCE OF THE INTERGRANULAR ENERGY-LOSS PEAK IN AC MAGNETIC-SUSCEPTIBILITY OF HIGH-T-C SUPERCONDUCTORS, Physica. C, Superconductivity, 256(1-2), 1996, pp. 183-190
Citations number
24
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
256
Issue
1-2
Year of publication
1996
Pages
183 - 190
Database
ISI
SICI code
0921-4534(1996)256:1-2<183:FOTIEP>2.0.ZU;2-W
Abstract
The temperature dependence of the AC magnetic susceptibility has been measured in the frequency range between 100 Hz and 40 kHz for various high-T-c supeconductors and analyzed on the basis of a model which inc orporates the effects of flux creep in the critical-state equation. By a comparison of the experimental data with our theoretical model, the frequency-dependent shift of the intergranular energy-loss peak is ex plained quantitatively and the parameters pertaining to the flux-hoppi ng frequency and pinning potential in the model are determined for var ious high-T-c superconductors.