Dynamics of stripe patterns in type-I superconductors subject to a rotating field
Abstract
The evolution of stripe patterns in type-I superconductors subject to a rotating in-plane magnetic field is investigated magneto-optically. The experimental results reveal a very rich and interesting behavior of the patterns. For small rotation angles, a small parallel displacement of the main part of the stripes and a co-rotation of their very ends is observed. For larger angles, small sideward protrusions develop, which then generate a zigzag instability, ultimately leading to a breaking of stripes into smaller segments. The short segments then start to co-rotate with the applied field although they lag behind by approximately . Very interestingly, if the rotation is continued, also reconnection of segments into longer stripes takes place. These observations demonstrate the importance of pinning in type-I superconductors.
Cite
@article{arxiv.cond-mat/0509811,
title = {Dynamics of stripe patterns in type-I superconductors subject to a rotating field},
author = {M. Menghini and R. J. Wijngaarden},
journal= {arXiv preprint arXiv:cond-mat/0509811},
year = {2009}
}
Comments
To appear in Phys. Rev. B