Spin and elastic waves with the random coupling parameter


Тип публикации: статья из журнала (материалы конференций, опубликованные в журналах)

Год издания: 2012

Идентификатор DOI: 10.4028/www.scientific.net/SSP.190.51

Ключевые слова: Dynamic susceptibility, Elastic waves, Inhomogeneities, Magnetoelastic coupling, Self-consistent approximation, Spin waves, Green's function, Magnetic materials, Magnetic susceptibility, Spin waves, Magnetic materials, Magnetic susceptibility, Magnetism, Spin waves, Anti-resonance, Dispersion law, Dynamic susceptibility, Inhomogeneities, Magnetoelastic couplings, Magnetoelastic waves, Narrow resonances, Physical nature, Random couplings, Self-consistent approximation, Wave numbers, Wavefields, Root Mean Square, Elastic waves, Elastic waves

Аннотация: Dynamic susceptibilities (Green's function) in a system of two wave fields of different physical nature connected by the zero-mean random coupling parameter are studied. Magnetoelastic waves in zero-mean magnetostrictive media are considered. It is shown that the Green's functions of the spin G?m(?) and elastic G?u(?) waves at the Показать полностьюintersection of the initial dispersion laws have the form of broad single-mode peaks with the fine structure on the tops of these peaks: the narrow resonance on the top of G?m(?) and the narrow antiresonance on the top of G?u(?) For the longwave inhomogeneities the widths of the broad peaks and narrow peaks are determined by the rootmean- square fluctuation and the correlation wave number, respectively. © (2012) Trans Tech Publications.

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Журнал: (21 August 2011 through 25 August 2011, Moscow

Выпуск журнала: Vol. 190

Номера страниц: 51-54


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