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

Abstract

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.

arXiv comment10 pages, 8 figures, submitted to Phys. Rev. B

References in corpus (5)

• Many-body Green's function theory for the magnetic reorientation of thin ferromagnetic films
• Quantum Monte Carlo simulation of thin magnetic films
• Many-body Green's function theory for thin ferromagnetic anisotropic Heisenberg films: treatment of the exchange anisotropy
• Anisotropic susceptibility of ferromagnetic ultrathin Co films on vicinal Cu
• Many-body Green's function theory for thin ferromagnetic films: exact treatment of the single-ion anisotropy

Cited by in corpus (5)

• Many-body Green's function theory of ferromagnetic Heisenberg systems with single-ion anisotropies in more than one direction
• Single-ion versus exchange anisotropy in calculating anisotropic susceptibilities of thin ferromagnetic Heisenberg films within many-body Green's function theory
• The treatment of zero eigenvalues of the matrix governing the equations of motion in many-body Green's function theory
• Theoretical Study of Temperature Dependence of Spin Susceptibility in Anisotropic Itinerant Ferromagnets
• Coupled ferro-antiferromagnetic Heisenberg bilayers investigated by many-body Green's function theory