Attenuation of coupled waves in antiferromagnetic elastic conductors in weak magnetic fields
type: Item
instance of: scholarly article
title: Attenuation of coupled waves in antiferromagnetic elastic conductors in weak magnetic fields
zbMATH Open document ID: 0558.73092
DOI: 10.1016/0020-7225(84)90021-1
published in: International Journal of Engineering Science
publication date: 1984-01-01T00:00:00Z
review text: Attenuation of coupled waves in simple antiferromagnetic elastic conductors under the influence of weak magnetic fields is studied. Three dissipative mechanisms, namely viscosity, spin-lattice-relaxation and electrical conduction are taken into consideration. It is found that all the three mechanisms influence the attenuation, to a greater or lesser extent, of the transverse elastic modes outside the resonance region. The combined effect of electric conduction and spin- lattice relaxation is to modify the absorption of spin-waves while viscosity and spin-lattice relaxation together are shown to contribute to the damping of mixed elastic spin modes in the two magnetoacoustic resonance regions. The magnetoacoustic resonance regions are stated to correspond to the interaction of left-circularly polarized transverse elastic waves and an upper spin-wave branch and right-circularly polarized transverse elastic waves and a lower spin-wave branch.
Mathematics Subject Classification ID: 74F15
Mathematics Subject Classification ID: 78A40
zbMATH DE Number: 3890894
zbMATH Keywords: left and right-circularly polarized elastic waves
zbMATH Keywords: upper and lower spin- wave branches
zbMATH Keywords: coupled waves
zbMATH Keywords: simple antiferromagnetic elastic conductors
zbMATH Keywords: weak magnetic fields
zbMATH Keywords: dissipative mechanisms
zbMATH Keywords: viscosity
zbMATH Keywords: spin-lattice-relaxation
zbMATH Keywords: electrical conduction
zbMATH Keywords: combined effect
zbMATH Keywords: absorption of spin-waves
zbMATH Keywords: damping of mixed elastic spin modes
zbMATH Keywords: magnetoacoustic resonance regions
author: Gérard A. Maugin
MaRDI profile type: Publication
full work available at URL: 0020-7225(84)90021-1
OpenAlex ID: W2004382574
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description: scientific article; zbMATH DE number 3890894