Angular dependence of magnetoresistivity and Hall effect in a YBa2Cu3Ox thin film

Angle-dependent Hall effect and vortex dynamics in single-crystalline MgB2 thin films

“…This was simultaneously observed in ρ xx and ρ xy , reflecting that failure in scaling is strongly related to the vortex motion in mixed-state. An explanation for this can be found within the scaling approach by the anisotropic of defects [11,13]: the effective pinning strength of defects within the superconducting plane and between adjacent planes will depend on the magnetic field direction and will not be the same after rescaling. This difference becomes considerable when the vortex tends to be parallel to the superconducting plane (at small θ).…”

“…NdFeAsO 0.82 F 0.18 and YBCO) [12,13]. A striking feature that has been observed in this method is the failure of scaling at low angles, and it has been explained within the model by the anisotropy of the defects [11,13]. However, the details of how the defects influence the failure angle have yet to be elucidated.…”

“…Furthermore, Blatter et al established a scaling approach based on the anisotropy of electron effective mass [11], which is better applied for low and moderate anisotropy superconductors (e.g. NdFeAsO 0.82 F 0.18 and YBCO) [12,13]. A striking feature that has been observed in this method is the failure of scaling at low angles, and it has been explained within the model by the anisotropy of the defects [11,13].…”