Magnetic reordering in the vicinity of a ferromagnetic/antiferromagnetic interface
Abstract
The magnetic arrangement in the vicinity of the interface between a ferromagnet and an antiferromagnet is investigated, in particular its dependence on the exchange couplings and the temperature. Applying a Heisenberg model, both sc(001) and fcc(001) lattices are considered and solved by a mean field approximation. Depending on the parameter values a variety of different magnetic configurations emerge. Usually the subsystem with the larger ordering temperature induces a magnetic order into the other one (magnetic proximity effect). With increasing temperature a reorientation of the magnetic sublattices is obtained. For coupled sc(001) systems both FM and AFM films are disturbed from their collinear magnetic order, hence exhibit a similar behavior. This symmetry is absent for fcc(001) films which, under certain circumstances, may exhibit two different critical temperatures. Analytical results are derived for simple bilayer systems.
Keywords
Cite
@article{arxiv.cond-mat/0507265,
title = {Magnetic reordering in the vicinity of a ferromagnetic/antiferromagnetic interface},
author = {P. J. Jensen and H. Dreysee and Miguel Kiwi},
journal= {arXiv preprint arXiv:cond-mat/0507265},
year = {2009}
}
Comments
accepted for publication in Eur. Phys. J. B