PHASE-DIAGRAM FOR FLUX-CREEP IN BI-2223 AG-SHEATHED TAPES

Citation
M. Reissner et al., PHASE-DIAGRAM FOR FLUX-CREEP IN BI-2223 AG-SHEATHED TAPES, Czechoslovak journal of Physics, 46, 1996, pp. 1561-1562
Citations number
6
Categorie Soggetti
Physics
ISSN journal
00114626
Volume
46
Year of publication
1996
Supplement
3
Pages
1561 - 1562
Database
ISI
SICI code
0011-4626(1996)46:<1561:PFFIBA>2.0.ZU;2-8
Abstract
From magnetic relaxation measurements on monocore Ag-sheathed Bi-2223 tapes a phase diagram for flux creep is proposed. With increasing fiel d and temperature a phase transition from 2D single vortex creep to 2D collective vortex creep is found. Both the phase transition and the i rreversibility line are shifted to higher temperatures for samples wit h higher transport critical current density.