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

被引：8
作者：
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
机构：
[1] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA
[2] SUNY Buffalo, Dept Chem, Buffalo, NY 14260 USA
[3] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
[4] Natl Renewable Energy Lab, Golden, CO 80401 USA
来源：
PHYSICA C | 2000年 / 333卷 / 3-4期
基金：
美国国家科学基金会;
关键词：
thin films; TlCr-1212; superconductors; high J(c);
D O I：
10.1016/S0921-4534(00)00230-6
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Epitaxial (Tl,Bi)Sr2Cr0.15Ca0.85Cu2Oy [(Tl,Bi)-1212] films have been successfully grown on both LaAlO3 and CeO2/YSZ substrates by post-deposition annealing 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 1212 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 range of 94-96 K, J(c) (77 K) values close to 6 x 10(5) A/cm(2) and excellent epitaxy on the CeO2 buffer layers. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码：221 / 228
页数：8
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