Complex fluids at complex surfaces simply complicated

Patricio, Pedro; Romero-Enrique, J. M.; Silvestre, N. M.; Bernardino, N. R.; da Gama, M. M. T.

http://hdl.handle.net/10400.21/2121

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Authors

Patricio, Pedro

Romero-Enrique, J. M.

Silvestre, N. M.

Bernardino, N. R.

da Gama, M. M. T.

Abstract(s)

We study wetting and filling of patterned surfaces by a nematic liquid crystal. We focus on three important classes of periodic surfaces: triangular, sinusoidal and rectangular. The results highlight the similarities and differences of nematic wetting of these surfaces and wetting by simple fluids. The interplay of geometry, surface and elastic energies can lead to the suppression of either filling or wetting. The periodic rectangular surface displays re-entrant transitions, with a sequence dry-filled-wet-filled, in the relevant region of parameter space.

Keywords

Wetting Transitions Nematics Liquid Crystals Patterned Substrates Nemantic-Liquid-Crystal Induced Orientational Order Phase-Transition Substrate Interface Isotropic-Phase Wedge Alignment Layer Films

URI

http://hdl.handle.net/10400.21/2121

Citation

PATRÍCIO, P.; ROMERO-ENRIQUE, J. M.; SILVESTRE, N. M.; BERNARDINO, N. R.; DA GAMA, M. M. T. - Complex fluids at complex surfaces simply complicated. Molecular Physics. ISSN 0026-9876. Vol. 109, n.º 7-10 (2011) p. 1067-1075.