Scaling of flux pinning with the thermodynamic critical field

Citation
Ka. Ziq et al., Scaling of flux pinning with the thermodynamic critical field, PHYS REV B, 60(5), 1999, pp. 3603-3607
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
60
Issue
5
Year of publication
1999
Pages
3603 - 3607
Database
ISI
SICI code
0163-1829(19990801)60:5<3603:SOFPWT>2.0.ZU;2-Q
Abstract
A systematic study of flux pinning and the thermodynamic critical field H-c has been undertaken to determine whether H-c is a central factor determini ng the critical current J(c),. Materials that have a fairly wide temperatur e interval of thermodynamic reversibility are selected so that the thermody namic critical field can be confidently extrapolated into the irreversible regime. J(c) is found to scale with H-c. For a given sample, the J(c)/H-c v s H/H-c curves are close to a universal function as temperature changes. In addition, the peak in the pinning force curve also scales with H-c(2) for a wide variety of samples having quite different transition temperatures. [ S0163-1829(99)15029-X].