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Spatial patterns mediated by subcritical and supercritical thermal fluctuations in the splay Fréedericksz transition
Arias, F.; Sagués i Mestre, Francesc
Universitat de Barcelona
The magnetically induced splay Fréedericksz transition is reexamined to look for pattern forming phenomena slightly above or below criticality. By using our traditional scheme of stochastic nematodynamic equations, situations are, respectively, found of transient and permanent predominance of transversal periodicities (wave numbers) along the direction perpendicular to the initial orientation within the sample. The relevance of these predictions in relation with recent observations in the electrically driven splay Fréedericksz transition, and in general with other pattern forming phenomena, is stressed.
Cristalls líquids
Dinàmica de fluids
Liquid crystals
Fluid dynamics
(c) The American Physical Society, 1991
The American Physical Society

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