Plasticity-Induced Magnetization in Amorphous Magnetic Solids
Soft Condensed Matter
2014-03-05 v1
Abstract
Amorphous magnetic solids, like metallic glasses, exhibit a novel effect: the growth of magnetic order as a function of mechanical strain under athermal conditions in the presence of a magnetic field. The magnetic moment increases in steps whenever there is a plastic event. Thus plasticity induces the magnetic ordering, acting as the effective noise driving the system towards equilibrium. We present results of atomistic simulations of this effect in a model of a magnetic amorphous solid subjected to pure shear and a magnetic field. To elucidate the dependence on external strain and magnetic field we offer a mean-field theory that provides an adequate qualitative understanding of the observed phenomenon.
Cite
@article{arxiv.1310.3979,
title = {Plasticity-Induced Magnetization in Amorphous Magnetic Solids},
author = {H. George E. Hentschel and Itamar Procaccia and Bhaskar Sen Gupta},
journal= {arXiv preprint arXiv:1310.3979},
year = {2014}
}