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Monte Carlo study of the isotropic and nematic phases of infinitely thin hard platelets

Eppenga, R., Frenkel, D.·1984·Molecular Physics

Abstract

We present the results of a detailed Monte Carlo study of the phase diagram of infinitely thin hard platelets. A weak first order isotropicnematic transition is observed. The equation of state in the isotropic regime is compared with several current theories, none of which is found to be fully satisfactory. The density dependence of the nematic order parameter is found to be compatible with a ‘critical’ exponent β=0·25. A study of the fluctuations of the order parameter in the isotropic phase casts doubt on the applicability of the Landau-de Gennes expression for the free energy. We observe that the relation between the nematic order parameters and is compatible with the predictions of mean-field theory. Practical aspects of the computation are discussed. A novel method to compute the pressure in a constant-volume Monte Carlo run is presented.

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Metadata

Authors
Eppenga, R., & Frenkel, D.
Venue
Molecular Physics
Published
1984-08-20
Volume
52
Issue
6
Pages
1303-1334
ISSN
  • 0026-8976 (ISSN-L)
  • 1362-3028
OpenAlex
W1993320948
Cited by
717
References
7
FWCI
6.91
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Monte Carlo study of the isotropic and nematic phases of infinitely thin hard platelets. https://app.cochat.ai/papers/10.1080/00268978400101951
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Eppenga, R., & Frenkel, D. (1984). Monte Carlo study of the isotropic and nematic phases of infinitely thin hard platelets. Molecular Physics. https://doi.org/10.1080/00268978400101951

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