Anisotropic susceptibilities of thin ferromagnetic films within many-body Green's function theory

Details Anisotropic susceptibilities of thin ferromagnetic films within many-body Green's function theory Anisotropic susceptibilities of thin ferromagnetic films within many-body Green's function theory

2003-06-10

arxiv.org/abs/cond-mat/0306243v2

phys. stat. sol. (b) 241, 925-934 (2004)

Physics

Condensed Matter

Statistical Mechanics

10 pages, 8 figures, submitted to Phys. Rev. B

Scientific paper

10.1002/pssb.200301967

Transverse and parallel static susceptibilities of in-plane uniaxial anisotropic ferromagnetic films are calculated within many-body Green's function theory on the basis of an Heisenberg model. The importance of collective magnetic excitations in particular in the paramagnetic regime are stressed by comparing with mean field calculations. The paper generalizes the work of Jensen et al. [1] to the multilayer case and to spins with S>1/2.

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