Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8164555 | Physica C: Superconductivity and its Applications | 2014 | 4 Pages |
Abstract
We present a study of the anisotropic vortex parameters as obtained from measurements of the microwave complex resistivity in the vortex state with a tilted applied magnetic field in YBa2Cu3O7âx thin films with BaZrO3 nanorods. We present the angular dependence of the vortex viscosity η, the pinning constant kp and the upper limit for the creep factor ÏM. We show that the directional effect of the nanorods is absent in η, which is dictated by the mass anisotropy γ. By contrast, pinning-mediated properties are strongly affected by the nanorods. It is significant that the pinning and creep affected by the nanorods is detectable also at our very high operating frequency, which implies very short-range displacements of the vortices from their equilibrium position.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
N. Pompeo, K. Torokhtii, A. Augieri, G. Celentano, V. Galluzzi, E. Silva,