INTERGRANULAR AND INTRAGRANULAR CURRENTS IN (BI,PB)(2)SR2CA2CU3O10- TEMPERATURE-DEPENDENCE IN LOW MAGNETIC-FIELDS(X SUPERCONDUCTORS )

Authors
PAASI J KOTTMAN P MAJOROS M PLECHACEK V
Citation
J. Paasi et al., INTERGRANULAR AND INTRAGRANULAR CURRENTS IN (BI,PB)(2)SR2CA2CU3O10- TEMPERATURE-DEPENDENCE IN LOW MAGNETIC-FIELDS(X SUPERCONDUCTORS ), Physica. C, Superconductivity, 305(1-2), 1998, pp. 21-25
Citations number
20
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
305
Issue
1-2
Year of publication
1998
Pages
21 - 25
Database
ISI
SICI code
0921-4534(1998)305:1-2<21:IAICI(>2.0.ZU;2-4
Abstract
The temperature dependence of intergranular and intragranular currents in (Bi,Pb)(2)Sr2Ca2Cu3O10+x superconductors was studied in low magnet ic fields. Zn order to distinguish the two kinds of currents, the expe riments were performed with two samples of similar grains: a hulk samp le of well-coupled grains, and a sample without intergranular coupling (powder sample). The temperature dependence of intragranular currents exhibited a behaviour typical for S-N-S (superconductor-normal metal- superconductor) junctions. For intergranular currents the temperature dependence suggested a limitation due to thermally activated flux cree p in the space between the superconducting grains. (C) 1998 Elsevier S cience B.V. All rights reserved.