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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/12314

Title: Phase separation dynamics in a two-dimensional magnetic mixture
Authors: Lichtner, K.
Archer, Andrew J.
Klapp, S.H.L.
Issue Date: 2012
Publisher: © American Institute of Physics (AIP)
Citation: LICHTNER, K., ARCHER, A.J. and KLAPP, S.H.L., 2012. Phase separation dynamics in a two-dimensional magnetic mixture. Journal of Chemical Physics, 136 (2), 024502, 14pp.
Abstract: Based on classical density functional theory (DFT), we investigate the demixing phase transition of a two-dimensional, binary Heisenberg fluid mixture. The particles in the mixture are modeled as Gaussian soft spheres, where one component is characterized by an additional classical spin-spin interaction of Heisenberg type. Within the DFT we treat the particle interactions using a mean-field approximation. For certain magnetic coupling strengths, we calculate phase diagrams in the density-concentration plane. For sufficiently large coupling strengths and densities, we find a demixing phase transition driven by the ferromagnetic interactions of the magnetic species. We also provide a microscopic description (i.e., density profiles) of the resulting non-magnetic/magnetic fluid-fluid interface. Finally, we investigate the phase separation using dynamical density functional theory, considering both nucleation processes and spinodal demixing.
Description: This article was published in the Journal of Chemical Physics [© American Institute of Physics (AIP)].
Version: Published
DOI: 10.1063/1.3674270
URI: https://dspace.lboro.ac.uk/2134/12314
Publisher Link: http://dx.doi.org/10.1063/1.3674270
ISSN: 0021-9606
Appears in Collections:Published Articles (Maths)

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