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.
041703-[8pp]
Popa-Nita, V.
068ec8ef-991a-40da-bbe5-3b2575be71d1
Sluckin, T.J.
8dbb6b08-7034-4ae2-aa65-6b80072202f6
2002
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), .
(doi:10.1103/PhysRevE.66.041703).
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
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Local EPrints ID: 29591
URI: http://eprints.soton.ac.uk/id/eprint/29591
ISSN: 1539-3755
PURE UUID: ce85b21b-ee3b-42b6-be1c-e01e530fcdd1
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Date deposited: 12 May 2006
Last modified: 16 Mar 2024 02:32
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V. Popa-Nita
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