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On the phase transition in ferrofluids

A. Yu. Zubarev - L. Yu. Iskakova

Department of Mathematical Physics, Ural State University, 51 Lenin Av., 620083 Ekaterinburg, Russia

Abstract
We present results of a theoretical study of scenarios of condensation phase transitions in the systems of identical spherical particles, each having a permanent magnetic moment. It is taken into account that the linear chain-like aggregates can appear in a system of particles before their bulk condensation. Analysis shows that without external magnetic field this condensation is similar to the classical ``gas--liquid'' phase transition in an ensemble of chains and single particles. In the case of infinitely strong magnetic field, the appearance of the chains blocks the ``gas-liquid'' phase transition; the experimentally observed condensation of particles must be rather of ``gas--solid'' type. Figs 3, Refs 22.

Magnetohydrodynamics 44, No. 3, 253-260, 2008 [PDF, 0.12 Mb]

Copyright: Institute of Physics, University of Latvia
Electronic edition ISSN 1574-0579
Printed edition ISSN 0024-998X
DOI: http://doi.org/10.22364/mhd