Microscopic Theory of Damon-Eshbach Modes in Ferromagnetic Films
Strongly Correlated Electrons
2009-10-31 v1
Abstract
The surface spin wave branches in ferromagnetic films are studied using a microscopic theory which considers both magnetic dipole-dipole and Heisenberg exchange interactions. The dipole terms are expressed in a Hamiltonian formalism, and the dipole sums are calculated in a rapidly convergent form. The Damon-Eshbach surface modes are analyzed for different directions of the spin-wave propagation and also for different ratios of the strength of the dipole interactions relative to the exchange interactions. Numerical results are presented using parameters for Fe and GdCl.
Keywords
Cite
@article{arxiv.cond-mat/0008223,
title = {Microscopic Theory of Damon-Eshbach Modes in Ferromagnetic Films},
author = {R. V. Leite and R. N. Costa Filho},
journal= {arXiv preprint arXiv:cond-mat/0008223},
year = {2009}
}
Comments
9 pages including figures, Revtex, to appear in the proceedings of the ICM 2000