MICROSTRUCTURE, FLUX-PINNING AND CRITICAL-CURRENT DENSITY IN YBA2CU3O7-DELTA FILMS GROWN BY LASER-ABLATION

Authors
MISRA DS PADALIA BD PAI SP PINTO R PALMER SB
Citation
Ds. Misra et al., MICROSTRUCTURE, FLUX-PINNING AND CRITICAL-CURRENT DENSITY IN YBA2CU3O7-DELTA FILMS GROWN BY LASER-ABLATION, Thin solid films, 245(1-2), 1994, pp. 186-190
Citations number
27
Categorie Soggetti
Physics, Applied","Material Science","Physics, Condensed Matter
Journal title
Thin solid films → ACNP
ISSN journal
00406090
Volume
245
Issue
1-2
Year of publication
1994
Pages
186 - 190
Database
ISI
SICI code
0040-6090(1994)245:1-2<186:MFACDI>2.0.ZU;2-Q
Abstract
Thin films of YBa2Cu3O7-delta (YBCO) are deposited by laser ablation a t substrate temperatures (T(s)) ranging from 575 to 850-degrees-C. The microstructure and growth behaviour of the films are found to be a se nsitive function of T(s). We also find that the critical current densi ty (J(c)) of the films is strongly related to the microstructure. It i s proposed that the boundaries between a-axis and c-axis grains may ac t as pinning centres.