Magnetic relaxation in the "Bragg-glass" phase in BSCCO

Authors
van der Beek, CJ Colson, S Konczykowski, M Indenbom, MV Drost, RJ Kes, PH
Citation
Cj. Van Der Beek et al., Magnetic relaxation in the "Bragg-glass" phase in BSCCO, PHYSICA C, 341, 2000, pp. 1279-1280
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
09214534 → ACNP
Volume
341
Year of publication
2000
Part
2
Pages
1279 - 1280
Database
ISI
SICI code
0921-4534(200011)341:<1279:MRIT"P>2.0.ZU;2-4
Abstract
Magnetic relaxation in the Bragg-glass phase of overdoped Bi2Sr2CaCu2O8 cry stals was investigated using time-resolved magneto-optical visualisation of the flux distribution. This has permitted us to extract the current-voltag e characteristic, which can be well described by a power-law, although fits to a stretched exponential E similar to exp(-j(c)/j)(mu) with 0.3 < <mu> < 0.8 are possible at long times in excess of 100 s.