Abstract
The switching magnetization process under influence of a magnetic field (+ h,− h) applied to the two nearest-neighbors sublattices of Ising spins with antiferromagnetic coupling are studied. Monte Carlo simulations of the switching curve h( t) against temperature t is presented. The switching takes place through an uniform coherent rotation below a critical temperature t 1. Above t 1, nucleation of bubble domains takes place and the growth of the domains corresponds to a flat portion of the h( t) dependence till temperature t 2. For t> t 2 both mechanisms of local spin flips and domain wall motions are present, so monotone decrease of h( t) is observed.
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