Self-organization of vortices in type-II superconductors during magnetic relaxation

Authors
Prozorov, R Giller, D
Citation
R. Prozorov et D. Giller, Self-organization of vortices in type-II superconductors during magnetic relaxation, PHYS REV B, 59(22), 1999, pp. 14687-14691
Citations number
37
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
59
Issue
22
Year of publication
1999
Pages
14687 - 14691
Database
ISI
SICI code
0163-1829(19990601)59:22<14687:SOVITS>2.0.ZU;2-R
Abstract
We revise applicability of the theory of self-organized criticality (SOC) t o the process bf magnetic relaxation in type-II superconductors. The drivin g parameter of self-organization of vortices is the energy barrier for flux creep and not the current density. The power spectrum of the magnetic nois e due to vortex avalanches is calculated and is predicted to vary with time during relaxation.