Self-organized patterns of macroscopic quantum tunneling in molecular magnets
Statistical Mechanics
2012-02-21 v1 Materials Science
Abstract
We study low temperature resonant spin tunneling in molecular magnets induced by a field sweep with account of dipole-dipole interactions. Numerical simulations uncovered formation of self-organized patterns of the magnetization and of the ensuing dipolar field that provide resonant condition inside a finite volume of the crystal. This effect is robust with respect to disorder and should be relevant to the dynamics of the magnetization steps observed in molecular magnets.
Cite
@article{arxiv.0903.2247,
title = {Self-organized patterns of macroscopic quantum tunneling in molecular magnets},
author = {D. A. Garanin and E. M. Chudnovsky},
journal= {arXiv preprint arXiv:0903.2247},
year = {2012}
}
Comments
4 Phys. Rev. pages, 5 figures