Synthesis and characterization of chromium-containing, thallium-based 1212films

Authors
Lao, JY Wang, JH Wang, DZ Tu, Y Yang, SX Wu, HL Ren, ZF Verebelyi, DT Paranthaman, M Aytug, T Christen, DK Bhattacharya, RN Blaugher, RD
Citation
Jy. Lao et al., Synthesis and characterization of chromium-containing, thallium-based 1212films, PHYSICA C, 333(3-4), 2000, pp. 221-228
Citations number
15
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
09214534 → ACNP
Volume
333
Issue
3-4
Year of publication
2000
Pages
221 - 228
Database
ISI
SICI code
0921-4534(20000520)333:3-4<221:SACOCT>2.0.ZU;2-R
Abstract
Epitaxial (Tl,Bi)Sr2Cr0.15Ca0.85Cu2Oy [(Tl,Bi)-1212] films have been succes sfully grown on both LaAlO3 and CeO2/YSZ substrates by post-deposition anne aling in flowing argon gas. These superconducting Tl-based, 1212-structured films on LaAlO3 substrates have T-c values in the range of 94-100 K, and J (c) values over 1.0 x 10(6) A/cm(2) at 77 K. The films are predominately 12 12 phase, with excellent epitaxy as determined by XRD theta-2 theta, omega and phi scans. The films on CeO2/YSZ substrates have T-c values in the rang e of 94-96 K, J(c) (77 K) values close to 6 x 10(5) A/cm(2) and excellent e pitaxy on the CeO2 buffer layers. (C) 2000 Published by Elsevier Science B. V. All rights reserved.