3 research outputs found

    Two-dimensional nematics in bulk and confined geometries

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    El pdf del art铆culo es la versi贸n pre-print: arXiv:1207.3256Two-dimensional nematics possess peculiar properties that have been studied recently using computer simulation and various theoretical models. Here we review our own contribution to the field using density-functional theory, and present some preliminary simulation results on confined two-dimensional nematics. First we discuss the possible stable bulk phases and phase diagrams and the relation between phases and particle geometry. We then explore the adsorption properties on a single substrate and the confinement effects that arise when the fluid is confined between parallel walls. Next, confinement in circular cavities is presented; this geometry allows us to measure some properties of the simplest defects that arise in two-dimensional nematics. Finally, preliminary Monte Carlo simulation results of confined nematics in circular geometry are shown. 漏 2012 Elsevier B.V.We acknowledge financial support from Comunidad Aut贸noma de Madrid under the R& D Program of Activities MODELICO-CM/S2009ESP-1691, and from MINECO (Spain) under grants MOSAICO, FIS2010-22047-C01, FIS2010-22047-C04 and FIS2010-22047-C05.Peer Reviewe

    Two-dimensional nematics in bulk and confined geometries

    Get PDF
    El pdf del art铆culo es la versi贸n pre-print: arXiv:1207.3256Two-dimensional nematics possess peculiar properties that have been studied recently using computer simulation and various theoretical models. Here we review our own contribution to the field using density-functional theory, and present some preliminary simulation results on confined two-dimensional nematics. First we discuss the possible stable bulk phases and phase diagrams and the relation between phases and particle geometry. We then explore the adsorption properties on a single substrate and the confinement effects that arise when the fluid is confined between parallel walls. Next, confinement in circular cavities is presented; this geometry allows us to measure some properties of the simplest defects that arise in two-dimensional nematics. Finally, preliminary Monte Carlo simulation results of confined nematics in circular geometry are shown. 漏 2012 Elsevier B.V.We acknowledge financial support from Comunidad Aut贸noma de Madrid under the R& D Program of Activities MODELICO-CM/S2009ESP-1691, and from MINECO (Spain) under grants MOSAICO, FIS2010-22047-C01, FIS2010-22047-C04 and FIS2010-22047-C05.Peer Reviewe
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