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|Title: ||Phase separation dynamics in a two-dimensional magnetic mixture|
|Authors: ||Lichtner, K.|
Archer, Andrew J.
|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)].|
|Publisher Link: ||http://dx.doi.org/10.1063/1.3674270|
|Appears in Collections:||Published Articles (Maths)|
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