MAGNETIC-FIELD DEPENDENT MICROWAVE-ABSORPTION EVIDENCE FOR A MIXED LIQUID-SOLID VORTEX PHASE IN BI2SR2CACU2O8+X

Authors
Citation
Fj. Owens, MAGNETIC-FIELD DEPENDENT MICROWAVE-ABSORPTION EVIDENCE FOR A MIXED LIQUID-SOLID VORTEX PHASE IN BI2SR2CACU2O8+X, Journal of physics and chemistry of solids, 55(2), 1994, pp. 167-170
Citations number
12
Categorie Soggetti
Physics, Condensed Matter",Chemistry
ISSN journal
00223697
Volume
55
Issue
2
Year of publication
1994
Pages
167 - 170
Database
ISI
SICI code
0022-3697(1994)55:2<167:MDMEFA>2.0.ZU;2-0
Abstract
The depinning of vortices can be observed as a change in the slope of the dependence of the surface resistance on B-1/2. However, close to t he transition magnetic field it is observed that there is a departure from the B-1/2 dependence. It is shown that this deviation is inconsis tent with second order behavior associated with a vortex glass. The de viation, however, can be accounted by the existence of a mixture of so lid and vortex liquid phases resulting from a magnetic field dependent distribution of pinning barriers.