Nonresonant acoustic absorption of Ising magnet
Teoretičeskaâ i matematičeskaâ fizika, Tome 98 (1994) no. 1, pp. 149-159 Cet article a éte moissonné depuis la source Math-Net.Ru

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Zubarev's nonequilibrium statistical operator method is used to construct a theory of the nonresonant acoustic absorption of the linear Ising magnet, the basic Hamiltonian of which is of the two-particle kind and is treated without approximations. The frequency dependence of the absorption is determined and found to differ analytically from the well-known Debye curve $\chi''_{\textup{Д}}(\omega)$ but for reasonable values of the physical parameters gives an envelope that agrees qualitatively with $\chi''_{\textup{Д}}(\omega)$.
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I. S. Donskaya; A. R. Kessel; S. S. Lapushkin. Nonresonant acoustic absorption of Ising magnet. Teoretičeskaâ i matematičeskaâ fizika, Tome 98 (1994) no. 1, pp. 149-159. http://geodesic.mathdoc.fr/item/TMF_1994_98_1_a10/

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