Viscoelastic ferrogel: dynamic magnetic susceptibilities

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Autore principale: Yu. L. Raikher
Natura: Artículo científico
Lingua:en
Pubblicazione: Sociedade Brasileira de Física 2001
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author Yu. L. Raikher
author_facet Yu. L. Raikher
contents Viscoelastic ferrogel: dynamic magnetic susceptibilities Yu. L. Raikher V. V. Rusakov Física, Astronomía y Matemáticas Theoretical model to describe magnetodynamics of a ferrogel, i.e., an assembly of ferromagnetic nanoparticles embedded in a gel, is proposed. The reorientations of the particles are determined by the influence of the elastic matrix and the rotational Brownian motion. The set of essential parameters, on which the components of the dynamic magnetic susceptibility tensor depend, is discussed. In the framework of the model, absorption of the energy of an ac field is studied. With allowance for the interaction of elastic and Brownian forces, the effective relaxation times and eigenfrequencies for the longitudinal and transverse components of the ferrogel magnetization are evaluated. 2001 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46413502006 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3 Vol.31
format Artículo científico
id redalyc_46413502006
institution Redalyc
language en
publishDate 2001
publisher Sociedade Brasileira de Física
spellingShingle Viscoelastic ferrogel: dynamic magnetic susceptibilities
Yu. L. Raikher
Física, Astronomía y Matemáticas
Viscoelastic ferrogel: dynamic magnetic susceptibilities Yu. L. Raikher V. V. Rusakov Física, Astronomía y Matemáticas Theoretical model to describe magnetodynamics of a ferrogel, i.e., an assembly of ferromagnetic nanoparticles embedded in a gel, is proposed. The reorientations of the particles are determined by the influence of the elastic matrix and the rotational Brownian motion. The set of essential parameters, on which the components of the dynamic magnetic susceptibility tensor depend, is discussed. In the framework of the model, absorption of the energy of an ac field is studied. With allowance for the interaction of elastic and Brownian forces, the effective relaxation times and eigenfrequencies for the longitudinal and transverse components of the ferrogel magnetization are evaluated. 2001 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46413502006 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3 Vol.31
title Viscoelastic ferrogel: dynamic magnetic susceptibilities
topic Física, Astronomía y Matemáticas
url https://www.redalyc.org/articulo.oa?id=46413502006