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Orientational order in model dipolar fluids

TitleOrientational order in model dipolar fluids
Publication TypeJournal Article
Year of Publication1999
AuthorsCamp, PJ, Patey, GN
JournalPhysical Review E
Volume60
Pagination4280-4284
Date PublishedOct
Type of ArticleArticle
ISBN Number1063-651X
KeywordsHARD-SPHERES, MONTE-CARLO, PHASES, SIMULATION, SYSTEMS
Abstract

Fluids of hard spheres each carrying two parallel point dipoles have been investigated using constant-volume Monte Carlo computer simulations. The results show that both ferroelectric and antiferroelectric fluid phases can be stabilized at high density and low temperature by dipolar interactions alone, if the separation between the dipoles on each sphere is sufficiently large. A simple lattice calculation provides some insight into the balance between dipole energy and orientational entropy which governs the polarization state. [S1063-651X(99)00610-8].

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