PROPERTIES OF TL-BASED THIN-FILMS AND THIN-FILM MICROSTRIPS DEPOSITEDBY EVAPORATION OF BAF2, CAF2 AND CU COMPONENTS

Authors
CHROMIK S STRBIK V JERGEL M HANIC F CONDEGALLARDO A FALCONY C CHAVIRA E BENACKA S
Citation
S. Chromik et al., PROPERTIES OF TL-BASED THIN-FILMS AND THIN-FILM MICROSTRIPS DEPOSITEDBY EVAPORATION OF BAF2, CAF2 AND CU COMPONENTS, Physica. C, Superconductivity, 282, 1997, pp. 639-640
Citations number
5
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
282
Year of publication
1997
Part
2
Pages
639 - 640
Database
ISI
SICI code
0921-4534(1997)282:<639:POTTAT>2.0.ZU;2-X
Abstract
Superconducting Tl-Ba-Ca-Cu-O thin films were prepared by thermal evap oration of BaF2, CaF2, and Cu components on MgO substrates followed by vacuum annealing of Ba-Ca-Cu precursors in dry oxygen and thallinatio n in flowing oxygen at atmospheric pressure. Dramatic structural chang es in synthesized films (stored in laboratory surroundings) accompanie d by an increase of the zero-resistivity T-c, were observed when exami nations were repeated in months cycles. Microstrips 16 mu m wide and 1 20-150 mu m long were made out of these films and their electrical de transport properties were investigated.