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arXiv · 1012.1523

Jc Scaling and Anisotropies in Co-doped Ba-122 thin films

Jens Hänisch·Kazumasa Iida·Silvia Haindl·Fritz Kurth·Alexander Kauffmann·Martin Kidszun·Thomas Thersleff·Jens Freudenberger·Ludwig Schultz·Bernhard Holzapfel
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Abstract

We have successfully grown epitaxial, superconducting films of Ba(Fe1-xCox)2As2 (Ba-122)with x ~ 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 caxis peak in Jc({\theta}). In contrast to cuprate high-Tc superconductors such as YBa2Cu3O7-d or even Bi2Sr2Ca2Cu3O10-d, the pnictides show a rather low anisotropic behavior in their Jc({\theta}) behavior as well as in their upper critical fields, Hc2. As a multiband superconductor, Ba-122 exhibits a temperature dependent electronic mass anisotropy.

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Jens Hänisch, Kazumasa Iida, Silvia Haindl, Fritz Kurth, Alexander Kauffmann, Martin Kidszun, Thomas Thersleff, Jens Freudenberger, Ludwig Schultz, Bernhard Holzapfel. 2010-12-07. Jc Scaling and Anisotropies in Co-doped Ba-122 thin films. https://doi.org/10.1109/tasc.2010.2100348

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