DETAILED MAGNETIC-RELAXATION MEASUREMENTS OF (Y,TM)BA2CU3O7-DELTA CRYSTALS - IMPLICATIONS FOR THE H-T DIAGRAM

Authors
COHEN LF ZHUKOV AA PERKINS G JENSEN HJ KLESTOV SA VORONKOVA VI ABELL S KUPFER H WOLF T CAPLIN AD
Citation
Lf. Cohen et al., DETAILED MAGNETIC-RELAXATION MEASUREMENTS OF (Y,TM)BA2CU3O7-DELTA CRYSTALS - IMPLICATIONS FOR THE H-T DIAGRAM, Physica. C, Superconductivity, 230(1-2), 1994, pp. 1-8
Citations number
34
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
230
Issue
1-2
Year of publication
1994
Pages
1 - 8
Database
ISI
SICI code
0921-4534(1994)230:1-2<1:DMMO(C>2.0.ZU;2-D
Abstract
By collating vortex relaxation data for a number of high-quality (Y, T m)Ba2Cu3O7-delta crystals, several different regions of the H-T plane can be mapped out quantitatively, and without resort to fitting parame ters. The features discussed are universal to all samples studied, and the crossovers between the regions can be understood in terms of dyna mic transitions in the vortex behaviour. The relaxation information tr anslates into an electric field-current picture, where different regio ns of the E-J curve are probed using two complementary relaxation tech niques.