Phase behaviour of the confined lattice gas Lebwohl-Lasher model

The phase behaviour of the Lebwohl-Lasher lattice gas model (one of the simplest representations of a nematogenic fluid) confined in a slab is investigated by means of extensive Monte Carlo simulations. The model is known to yield a first order gas-liquid transition in both the 2D and 3D limits, tha...

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Збережено в:
Бібліографічні деталі
Дата:2013
Автори: Almarza, N.G., Martín, C., Lomba, E.
Формат: Стаття
Мова:English
Опубліковано: Інститут фізики конденсованих систем НАН України 2013
Назва видання:Condensed Matter Physics
Онлайн доступ:http://dspace.nbuv.gov.ua/handle/123456789/120844
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:Phase behaviour of the confined lattice gas Lebwohl-Lasher model / N.G. Almarza, C. Martín, E. Lomba// Condensed Matter Physics. — 2013. — Т. 16, № 4. — С. 43602:1-6. — Бібліогр.: 22 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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Резюме:The phase behaviour of the Lebwohl-Lasher lattice gas model (one of the simplest representations of a nematogenic fluid) confined in a slab is investigated by means of extensive Monte Carlo simulations. The model is known to yield a first order gas-liquid transition in both the 2D and 3D limits, that is coupled with an orientational order-disorder transition. This latter transition happens to be first order in the 3D limit and it shares some characteristic features with the continuous defect mediated Berezinskii-Kosterlitz-Thouless transition in 2D. In this work we will analyze in detail the behaviour of this system taking full advantage of the lattice nature of the model and the particular symmetry of the interaction potential, that allows for the use of efficient cluster algorithms.