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Dynamic structure factors of a Heisenberg model ferrofluid

Dynamic structure factors of a Heisenberg model ferrofluid

Using the results of our previous papers [Physica A 220 (1995) 325; Physica A 234 (1996) 129], where the generalized transport equations for a Heisenberg-like model of a ferrofluid were derived and the hydrodynamic collective mode spectrum has been studied, in this work we consider the expressions...

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Bibliographic Details
Main Authors: Mryglod, I., Folk, R., Dubyk, S., Rudavskii, Yu.
Language:English
Published: Інститут фізики конденсованих систем НАН України 1999
Series:Condensed Matter Physics
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/120266
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Summary:Using the results of our previous papers [Physica A 220 (1995) 325; Physica A 234 (1996) 129], where the generalized transport equations for a Heisenberg-like model of a ferrofluid were derived and the hydrodynamic collective mode spectrum has been studied, in this work we consider the expressions for hydrodynamic time correlation functions in the limit of small wavenumbers k and frequencies ω . The analytical results for the time correlation functions of `particle density–particle density' and `spin density– spin density', being exact in the hydrodynamic limit, are obtained. The expressions for the corresponding dynamical structure factors are analyzed.

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