Jc Scaling and Anisotropies in Co-Doped Ba-122 Thin Films

被引:19
作者
Haenisch, Jens [1 ,2 ]
Iida, Kazumasa [1 ]
Haindl, Silvia [1 ]
Kurth, Fritz [1 ]
Kauffmann, Alexander [1 ]
Kidszun, Martin [1 ]
Thersleff, Thomas [1 ]
Freudenberger, Jens [1 ]
Schultz, Ludwig [1 ]
Holzapfel, Bernhard [1 ]
机构
[1] IFW Dresden, Inst Metall Mat, D-01069 Dresden, Germany
[2] Los Alamos Natl Lab, Superconduct Technol Ctr, Los Alamos, NM 87545 USA
关键词
Current density; materials science and technology; superconducting films; superconducting materials measurements; thin films; SUPERCONDUCTORS; COMPOUND; FIELD;
D O I
10.1109/TASC.2010.2100348
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We have successfully grown epitaxial, superconducting films of Ba(Fe1-xCox)(2)As-2 ( Ba-122) with x similar to 0.1. The films grow without observable correlated defects parallel to the c-axis, as confirmed by TEM. This is also reflected in the absence of a c-axis peak in J(c)(theta). In contrast to cuprate high-T-c superconductors such as YBa2Cu3O1-delta or even Bi2Sr2Ca2Cu3O10-delta, the pnictides show a rather low anisotropic behavior in their J(c)(theta) behavior as well as in their upper critical fields, H-c2. As a multiband superconductor, Ba-122 exhibits a temperature dependent electronic mass anisotropy.
引用
收藏
页码:2887 / 2890
页数:4
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