One-dimensional pinning behavior in Co-doped BaFe2As2 thin films
  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. 
V. Mishev, W. Seeb\"ock, M. Eisterer, K. Iida, F. Kurth, J. H\"anisch,   E. Reich and B. Holzapfel
cond-mat.supr-con