Abstract
Measurements of anisotropic transport properties (dc and high-frequency regime) of driven vortex matter in YBa2Cu3O7−x with elongated strong-pinning sites (c-axis aligned, self-assembled BaZrO3 nanorods) are used to demonstrate that the effective-mass angular scaling takes place only in intrinsic physical quantities (flux-flow resistivity), and not in pinning-related Labusch parameter and critical currents. Comparison of the dynamics at different time scales shows evidence for a transition of the vortex matter toward a Mott phase, driven by the presence of nanorods. The strong pinning in dc arises partially from a dynamic effect.
Highlights
films is a matter of strong interest1–4 in view
While in films grown by Pulsed Laser Deposition
Labusch parameter kp are largely enhanced by addition of BZO nanoinclusions
Summary
Anisotropy and strength of vortex pinning centers in coated conductors
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