THE SYNTHESIS OF TL-BA-CA-CU-O(AGY) HTSC FILMS THROUGH SPRAY-PYROLYSIS AND AN EVALUATION OF THE INFLUENCE OF SILVER ON THE CRITICAL-CURRENTDENSITY

Authors
SINGH HK SAXENA AK SRIVASTAVA ON
Citation
Hk. Singh et al., THE SYNTHESIS OF TL-BA-CA-CU-O(AGY) HTSC FILMS THROUGH SPRAY-PYROLYSIS AND AN EVALUATION OF THE INFLUENCE OF SILVER ON THE CRITICAL-CURRENTDENSITY, Superconductor science and technology, 8(6), 1995, pp. 448-454
Citations number
13
Categorie Soggetti
Physics, Applied","Physics, Condensed Matter
Journal title
Superconductor science and technology → ACNP
ISSN journal
09532048
Volume
8
Issue
6
Year of publication
1995
Pages
448 - 454
Database
ISI
SICI code
0953-2048(1995)8:6<448:TSOTHF>2.0.ZU;2-C
Abstract
The synthesis of Tl-Ba-Ca-Cu-O(Ag(y)) HTSC films corresponding to the 2223 phase through the spray pyrolysis technique has been carried out. These films are found to possess one of the highest known T(c) values for such films of approximately 115 K and exhibit one of the highest J(c) values of 1.25 x 10(5) A cm-2 (16 K) and 0.312 x 10(5) A cm-2(77 K) for Ag content of 0.35 corresponding to Tl2Ba2Ca2Cu3O10(Ag0.35). Th e enhancement of J(c) due to Ag addition has been found to depend on t he Ag content. This dependence has been found to be explicable in term s of Ag-induced grain boundary passivation and Ag segregation at the g rain boundary-grain interface.