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Spatial patterns mediated by subcritical and supercritical thermal fluctuations in the splay Fréedericksz transition
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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.
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ARIAS, F. and SAGUÉS I MESTRE, Francesc. Spatial patterns mediated by subcritical and supercritical thermal fluctuations in the splay Fréedericksz transition. Physical Review A. 1991. Vol. 44, num. 12, pags. 8220-8223. ISSN 1050-2947. [consulted: 17 of June of 2026]. Available at: https://hdl.handle.net/2445/9546