Magnetoelastic communication and attenuation collective excitations in model of half metal

E. S. Orel O.M. Beketov National University of Urban Economy in Kharkiv, Ukraine, 61002, Kharkov, Revolyutsii street, 12

Keywords: phonon, magnon, spin-lattice interaction, signal attenuation of magnons, the mass functional

Abstract

It is viewed signal attenuation collective excitations in model of half metal and the effect of qualitative calculation of decay time and threshold quasimomentums of magnons is presented. Emission by magnons of phonons at zero temperature is provided at the expense of take off by a magnetic subsystem of energy from a radiant of an exterior electromagnetic field. In the field of poles of the mass functional the spin-lattice interaction main effect is signal attenuation of magnons, as should be reflected, mainly, in spectrums of magnetic uptake. The effect from a renormalization magnon energies in this spectroscopic field becomes less significant for the shape of a curve of magnetic uptake.

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