Abstract
Abstract
In this work, we performed NpT Monte Carlo simulations of a Gay–Berne discotic liquid crystal confined in a spherical droplet under face-on anchoring and fixed pressure. We find that, in contrast to the unbounded system, a plot of the order parameter as function of temperature does not show a clear evidence of a first-order isotropic-nematic transition. We also find that the impossibility of simultaneously satisfy the uniform director field requirement of a nematic phase with the radial boundary conditions, results in the appearance of a ring disclination line as a stress release mechanism in the interior of the droplet. Under further cooling, a columnar phase appears at the center of the droplet.
Funder
Dirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de México
Supercomputing National Center
Consejo Nacional de Ciencia y Tecnología
Subject
Condensed Matter Physics,General Materials Science
Cited by
2 articles.
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