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Nonresonant acoustic absorption of Ising magnet

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Abstract

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 χ ″D (ω) but for reasonable values of the physical parameters gives an envelope that agrees qualitatively with χ ″D (ω).

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Authors
  1. I. S. Donskaya
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  2. A. R. Kessel'
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  3. S. S. Lapushkin
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Additional information

Kazan Physicotechnical Institute, Russian Academy of Sciences; Moscow Institute of Instrument Manufacture. Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 98, No. 1, pp. 149–159, January, 1994.

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Donskaya, I.S., Kessel', A.R. & Lapushkin, S.S. Nonresonant acoustic absorption of Ising magnet. Theor Math Phys 98, 100–106 (1994). https://doi.org/10.1007/BF01015127

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  • DOI: https://doi.org/10.1007/BF01015127

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