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Surface modes at the nematic-isotropic interface

Surface modes at the nematic-isotropic interface
Surface modes at the nematic-isotropic interface
We examine surface modes at the nematic-isotropic interface using the generalized dynamical Landau-de Gennes theory. We assume an isothermal, infinite, unbounded nematic-isotropic system characterized by a scalar order parameter, both phases having the same density and viscosity, respectively. The generalized dispersion relation is obtained and analyzed in particular cases. Order parameter relaxation dominates in the short wavelength limit, while in the long wavelength limit viscous damping becomes important. We study the crossover between the two regimes and estimate the extent of this region for the liquid crystal 8CB.
1539-3755
041703-[8pp]
Popa-Nita, V.
068ec8ef-991a-40da-bbe5-3b2575be71d1
Sluckin, T.J.
8dbb6b08-7034-4ae2-aa65-6b80072202f6
Popa-Nita, V.
068ec8ef-991a-40da-bbe5-3b2575be71d1
Sluckin, T.J.
8dbb6b08-7034-4ae2-aa65-6b80072202f6

Popa-Nita, V. and Sluckin, T.J. (2002) Surface modes at the nematic-isotropic interface. Physical Review E, 66 (4), 041703-[8pp]. (doi:10.1103/PhysRevE.66.041703).

Record type: Article

Abstract

We examine surface modes at the nematic-isotropic interface using the generalized dynamical Landau-de Gennes theory. We assume an isothermal, infinite, unbounded nematic-isotropic system characterized by a scalar order parameter, both phases having the same density and viscosity, respectively. The generalized dispersion relation is obtained and analyzed in particular cases. Order parameter relaxation dominates in the short wavelength limit, while in the long wavelength limit viscous damping becomes important. We study the crossover between the two regimes and estimate the extent of this region for the liquid crystal 8CB.

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Published date: 2002

Identifiers

Local EPrints ID: 29591
URI: http://eprints.soton.ac.uk/id/eprint/29591
ISSN: 1539-3755
PURE UUID: ce85b21b-ee3b-42b6-be1c-e01e530fcdd1
ORCID for T.J. Sluckin: ORCID iD orcid.org/0000-0002-9163-0061

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Date deposited: 12 May 2006
Last modified: 09 Jan 2022 02:32

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Contributors

Author: V. Popa-Nita
Author: T.J. Sluckin ORCID iD

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