Phase Separation in Mixtures of Nematic and Isotropic Fluids

Fuente: arXiv
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Main Authors: da Gama, Margarida M. Telo, Coelho, Rodrigo C. V.
Format: Preprint
Published: 2025
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author da Gama, Margarida M. Telo
Coelho, Rodrigo C. V.
author_facet da Gama, Margarida M. Telo
Coelho, Rodrigo C. V.
contents Mixtures of nematic liquid crystals and isotropic fluids display a diverse range of phase behaviors, arising from the coupling between orientational order and concentration fluctuations. In this review, we introduce a simplified mathematical framework that integrates the Landau-de Gennes free energy for nematic ordering with the Cahn-Hilliard free energy for phase separation. We derive the corresponding governing equations and analyze the stability of uniform phases, along with the resulting interfacial phenomena. The review concludes with a brief discussion highlighting key differences in phase separation between mixtures of isotropic fluids with passive and active nematics.
format Preprint
id arxiv_https___arxiv_org_abs_2503_24101
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Phase Separation in Mixtures of Nematic and Isotropic Fluids
da Gama, Margarida M. Telo
Coelho, Rodrigo C. V.
Soft Condensed Matter
Mixtures of nematic liquid crystals and isotropic fluids display a diverse range of phase behaviors, arising from the coupling between orientational order and concentration fluctuations. In this review, we introduce a simplified mathematical framework that integrates the Landau-de Gennes free energy for nematic ordering with the Cahn-Hilliard free energy for phase separation. We derive the corresponding governing equations and analyze the stability of uniform phases, along with the resulting interfacial phenomena. The review concludes with a brief discussion highlighting key differences in phase separation between mixtures of isotropic fluids with passive and active nematics.
title Phase Separation in Mixtures of Nematic and Isotropic Fluids
topic Soft Condensed Matter
url https://arxiv.org/abs/2503.24101