MersV1, Main, Exploration, bibRecord, 002241

Isotropic-nematic phase diagram for interacting rigid rods on two-dimensional lattices.

Identifieur interne : 002241 ( Main/Exploration ); précédent : 002240; suivant : 002242

Isotropic-nematic phase diagram for interacting rigid rods on two-dimensional lattices.

Auteurs : P. Longone [Argentine] ; M. Dávila ; A J Ramirez-Pastor

Source :

Physical review. E, Statistical, nonlinear, and soft matter physics [ 1550-2376 ] ; 2012.

RBID : pubmed:22400541

Descripteurs français

KwdFr :
- Anisotropie, Cristallisation (), Cristaux liquides (), Modèles chimiques, Modèles moléculaires, Nanostructures (), Nanostructures (ultrastructure), Simulation numérique, Transition de phase.
MESH :
- Anisotropie, Cristallisation, Cristaux liquides, Modèles chimiques, Modèles moléculaires, Nanostructures, Simulation numérique, Transition de phase.

English descriptors

KwdEn :
- Anisotropy, Computer Simulation, Crystallization (methods), Liquid Crystals (chemistry), Models, Chemical, Models, Molecular, Nanostructures (chemistry), Nanostructures (ultrastructure), Phase Transition.
MESH :
- chemistry : Liquid Crystals, Nanostructures.
- methods : Crystallization.
- ultrastructure : Nanostructures.
- Anisotropy, Computer Simulation, Models, Chemical, Models, Molecular, Phase Transition.

Abstract

The phase behavior of interacting rigid rods of length k (k-mers) on two-dimensional square and triangular lattices has been studied by theoretical calculations in the framework of the lattice-gas model. The process was analyzed by comparing the dependence on coverage of the free energy per site of an isotropic submonolayer of interacting k-mers f(iso)(θ) with that corresponding to a fully aligned (nematic) system f(nem)(θ). The existence of an intersection point between the curves f(iso)(θ) and f(nem)(θ), which is indicative of the occurrence of an isotropic-nematic phase transition in the adlayer, allowed us to obtain the complete (temperature, coverage, k-mer size) phase diagram of the system.

DOI: 10.1103/PhysRevE.85.011136
PubMed: 22400541

Affiliations:

Argentine

Le document en format XML

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<front><div type="abstract" xml:lang="en">The phase behavior of interacting rigid rods of length k (k-mers) on two-dimensional square and triangular lattices has been studied by theoretical calculations in the framework of the lattice-gas model. The process was analyzed by comparing the dependence on coverage of the free energy per site of an isotropic submonolayer of interacting k-mers f(iso)(θ) with that corresponding to a fully aligned (nematic) system f(nem)(θ). The existence of an intersection point between the curves f(iso)(θ) and f(nem)(θ), which is indicative of the occurrence of an isotropic-nematic phase transition in the adlayer, allowed us to obtain the complete (temperature, coverage, k-mer size) phase diagram of the system.</div>
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Isotropic-nematic phase diagram for interacting rigid rods on two-dimensional lattices.

Isotropic-nematic phase diagram for interacting rigid rods on two-dimensional lattices.

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki

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