Reversal-field memory in magnetic hysteresis
arXiv:cond-mat/0304541 · doi:10.1063/1.1557354
Abstract
We report results demonstrating a singularity in the hysteresis of magnetic materials, the reversal-field memory effect. This effect creates a nonanalyticity in the magnetization curves at a particular point related to the history of the sample. The microscopic origin of the effect is associated with a local spin-reversal symmetry of the underlying Hamiltonian. We show that the presence or absence of reversal-field memory distinguishes two widely studied models of spin glasses (random magnets).
3 pages, 5 figures. Proceedings of "2002 MMM Conferece", Tampa, FL