CHEMICAL DOPING AND INTERGRANULAR MAGNETIC-FIELD EFFECTS IN BULK THALLIUM-BASED SUPERCONDUCTORS

Authors
YANG M KAO YH XIN Y WONG KW
Citation
M. Yang et al., CHEMICAL DOPING AND INTERGRANULAR MAGNETIC-FIELD EFFECTS IN BULK THALLIUM-BASED SUPERCONDUCTORS, Physical review. B, Condensed matter, 50(18), 1994, pp. 13653-13658
Citations number
24
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
50
Issue
18
Year of publication
1994
Pages
13653 - 13658
Database
ISI
SICI code
0163-1829(1994)50:18<13653:CDAIME>2.0.ZU;2-D
Abstract
Measurements of ac magnetic susceptibility of bulk Tl2Ba2Ca2Cu3Oy and compounds containing noble-metal additives were carried out to investi gate the effects of chemical doping and-penetration of magnetic field into the intergranular region. Significant enhancement of the intergra nular critical current density was demonstrated in Tl-based ceramic su perconductors with Au and Ag doping. Methods for convenient determinat ion of the intergranular weak-link phase-locking temperature and avera ge lower critical field in the bulk granular superconductors are discu ssed.