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arXiv · 1401.7518

One-dimensional pinning behavior in Co-doped BaFe2As2 thin films

V. Mishev·W. Seeböck·M. Eisterer·K. Iida·F. Kurth·J. Hänisch·E. Reich·B. Holzapfel
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Abstract

Angle-resolved transport measurements revealed that planar defects dominate flux pinning in the investigated Co-doped BaFe2As2 thin film. For any given field and temperature, the critical current depends only on the angle between the crystallographic c-axis and the applied magnetic field but not on the angle between the current and the field. The critical current is therefore limited only by the in-plane component of the Lorentz force but independent of the out-of-plane component, which is entirely balanced by the pinning force exerted by the planar defects. This one-dimensional pinning behavior shows similarities and differences to intrinsic pinning in layered superconductors.

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V. Mishev, W. Seeböck, M. Eisterer, K. Iida, F. Kurth, J. Hänisch, E. Reich, B. Holzapfel. 2014-01-29. One-dimensional pinning behavior in Co-doped BaFe2As2 thin films. https://doi.org/10.1063/1.4838039

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