Magnetostatic modes in coupled antiferromagnet/ferromagnet bilayers

M. A.A. Monteiro, G. A. Farias, R. N. Costa Filho and N. S. Almeida ()

The European Physical Journal B: Condensed Matter and Complex Systems, 2008, vol. 61, issue 2, 121-126

Abstract: We study the influence of interface effects on the magnetostatic modes propagating in a coupled ferromagnetic/antiferromagnetic bilayer. We assume that the magnetic layers are thick enough to be described by the bulk parameters and they are coupled through the interaction between the magnetic moments located at the interface. We use a phenomenological approach taking into account the presence of different magnetic layers in the system to calculate the modified dynamical response of each material. We use the corrected magnetic permeability of the layers to obtain a correlation between the interface characteristics and the physical behavior of the magnetic excitations propagating in the system. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2008

Keywords: 75.40.Gb dynamic properties (dynamical susceptibility, static susceptibility, spin waves, spin diffusion, dynamic scaling, etc.), 75.30.Cr (Saturation moments and magnetic susceptibilities), 75.70.Cn Magnetic properties of interfaces (multilayers, superlattices, heterostructures), 76.50.+g (Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance), (search for similar items in EconPapers)
Date: 2008
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DOI: 10.1140/epjb/e2008-00062-8

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