Surface magnetic canting in a ferromagnet
Abstract
The surface magnetic canting (SMC) of a semi-infinite film with ferromagnetic exchange interaction and competing bulk and surface anisotropies is investigated via a nonlinear mapping formulation of mean-field theory previously developed by our group [L. Trallori et al., Int. J. Mod. Phys. B 10, 1935-1988 (1996)], and extended to the case where an external magnetic field is applied to the system. When the field H is parallel to the film plane, the condition for SMC is found to be the same as that recently reported by Popov and Pappas [Phys. Rev. B 64, 184401 (2001)]. The case of a field H applied perpendicularly to the film plane is also investigated. In both cases, the zero-temperature equilibrium configuration is easily determined by our theoretical approach.
Cite
@article{arxiv.cond-mat/0209360,
title = {Surface magnetic canting in a ferromagnet},
author = {P. Betti and M. G. Pini and A. Rettori},
journal= {arXiv preprint arXiv:cond-mat/0209360},
year = {2009}
}
Comments
4 pages, 3 figures