Article
Scaling of the elastic contribution to the surface free energy of a nematic liquid crystal on a sawtoothed substrate
Author/s | Romero Enrique, José Manuel
![]() ![]() ![]() ![]() ![]() ![]() ![]() Pham, Chi Tuong Patrício, Pedro |
Department | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Publication Date | 2010 |
Deposit Date | 2016-03-30 |
Published in |
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Abstract | We characterize the elastic contribution to the surface free energy of a nematic liquid crystal in the presence
of a sawtooth substrate. Our findings are based on numerical minimization of the Landau-de Gennes model ... We characterize the elastic contribution to the surface free energy of a nematic liquid crystal in the presence of a sawtooth substrate. Our findings are based on numerical minimization of the Landau-de Gennes model and analytical calculations on the Frank-Oseen theory. The nucleation of disclination lines characterized by nonhalf- integer winding numbers in the wedges and apexes of the substrate induces a leading order proportional to q ln q to the elastic contribution to the surface free-energy density, with q being the wave number associated with the substrate periodicity |
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