Incorporation of Co dopant and its effect on magneto-transport properties in c-axis oriented epitaxial YBa2Cu3-xCoxO7-δ thin films

被引：1
作者：
Rajeswari, M [1 ]
Shreekala, R
Trajanovic, Z
Ogale, SB
Choughule, DD
Venkatesan, T
Lakeou, S
Thorpe, AN
机构：
[1] Univ Maryland, Dept Phys, Ctr Superconduct Res, College Pk, MD 20742 USA
[2] Univ DC, Dept Engn & Technol, Washington, DC 20008 USA
[3] Howard Univ, Dept Phys, Washington, DC 20008 USA
[4] Univ Maryland, Dept Mat & Nucl Engn, College Pk, MD 20742 USA
[5] Univ Pune, Dept Phys, Pune, Maharashtra, India
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1998年 / 304卷 / 3-4期
关键词：
thin films; dopant effects; interlayer coupling; critical current density;
D O I：
10.1016/S0921-4534(98)00255-X
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have studied the effects of incorporation of Co as a substitutional dopant for the copper site in c-axis oriented YBa2Cu3O7-delta thin films. We find that the substrate temperature and the post-deposition cooling rate are critical in obtaining thin films of the doped material with properties close to the bulk values. Studies of the critical current anisotropy and magnetic field induced broadening of the superconducting transition in the Co doped thin films suggest that the partial substitution of Co for copper results in enhanced decoupling of the CuO2 planes responsible for superconducting transport. (C) 1998 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码：277 / 282
页数：6
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