Magnetization Jump in a Model for Flux Lattice Melting at Low Magnetic Fields
Condensed Matter
2009-10-30 v3
Abstract
Using a frustrated XY model on a lattice with open boundary conditions, we numerically study the magnetization change near a flux lattice melting transition at low fields. In both two and three dimensions, we find that the melting transition is followed at a higher temperature by the onset of large dissipation associated with the zero-field XY transition. It is characterized by the proliferation of vortex-antivortex pairs (in 2D) or vortex loops (in 3D). At the upper transition, there is a sharp increase in magnetization, in qualitative agreement with recent local Hall probe experiments.
Keywords
Cite
@article{arxiv.cond-mat/9703251,
title = {Magnetization Jump in a Model for Flux Lattice Melting at Low Magnetic Fields},
author = {Seungoh Ryu and D. Stroud},
journal= {arXiv preprint arXiv:cond-mat/9703251},
year = {2009}
}
Comments
updated figures and texts. new movies available at http://www.physics.ohio-state.edu:80/~ryu/jj.html. Accepted for publication in Physical Review Letters