Elastic lines on splayed columnar defects studied numerically
Superconductivity
2007-05-23 v3
Abstract
We investigate by exact optimization method properties of two- and three-dimensional systems of elastic lines in presence of splayed columnar disorder. The ground state of many lines is separable both in 2d and 3d leading to a random walk -like roughening in 2d and ballistic behavior in 3d. Furthermore, we find that in the case of pure splayed columnar disorder in contrast to point disorder there is no entanglement transition in 3d. Entanglement can be triggered by perturbing the pure splay system with point defects.
Cite
@article{arxiv.cond-mat/0508689,
title = {Elastic lines on splayed columnar defects studied numerically},
author = {Viljo Petaja and Matti Sarjala and Mikko Alava and Heiko Rieger},
journal= {arXiv preprint arXiv:cond-mat/0508689},
year = {2007}
}
Comments
9 pages, 11 figures. Accepted for publication in PRB