Vortex dynamics in layered superconductors with correlated defects: influence of interlayer coupling
Superconductivity
2007-05-23 v1
Abstract
We report a detailed study of the vortex dynamics and vortex phase diagrams of two amorphous Ta_0.3Ge_0.7/Ge multilayered films with intrinsic coplanar defects, but different interlayer coupling. A pinned Bose-glass phase in the more weakly coupled sample exists only below a cross-over field H* in striking contrast to the strongly coupled film. Above H* the flux lines are thought to break up into pancake vortices and the cross-over field is significantly increased when the field is aligned along the extended defects. The two films show different vortex creep excitations in the Bose-glass phase.
Cite
@article{arxiv.cond-mat/0104530,
title = {Vortex dynamics in layered superconductors with correlated defects: influence of interlayer coupling},
author = {A. Engel and H. J. Trodahl and J. C. Abele and D. Smith and S. M. Robinson},
journal= {arXiv preprint arXiv:cond-mat/0104530},
year = {2007}
}
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zip file: 1 RevTex, 5 figures (png)