@article {1259,
title = {Colloid-induced structure in liquid crystal media},
journal = {Journal of Chemical Physics},
volume = {122},
number = {12},
year = {2005},
note = {ISI Document Delivery No.: 915HDTimes Cited: 7Cited Reference Count: 26},
month = {Mar},
pages = {8},
type = {Article},
abstract = {The structural perturbations induced by colloidal particles immersed in a model nematic subjected to an external field are calculated employing integral equation methods. Maps of the density-orientational distribution about a colloidal particle are obtained, and these provide a microscopic picture of the colloid{\textquoteright}s nematic coat. We focus on colloidal particles that favor homeotropic anchoring, but planar anchoring cases are also considered. The range and structure of the nematic coat is shown to be significantly influenced by the nature of the anchoring, the size of the colloidal particle, the range and strength of the colloid-nematogen interaction, and the external field strength. All of these factors are discussed.},
keywords = {FIELD, FLUIDS, INTEGRAL-EQUATION THEORY, PHASE, SIMULATION, SPHERICAL-PARTICLE, TOPOLOGICAL DEFECTS},
isbn = {0021-9606},
url = {://000228287900062},
author = {Sokolovska, T. G. and Sokolovskii, R. O. and Patey, G. N.}
}
@article {5104,
title = {Ferroelectric order in positionally frozen dipolar systems},
journal = {Journal of Chemical Physics},
volume = {115},
number = {10},
year = {2001},
note = {ISI Document Delivery No.: 466LTTimes Cited: 13Cited Reference Count: 46},
month = {Sep},
pages = {4718-4731},
type = {Article},
abstract = {We discuss the possibility of long-range ferroelectric order in an amorphous dipolar system. Our model consists of spheres with frozen positions and freely rotating three-dimensional dipole moments. Correlation functions are calculated by means of the hypernetted-chain integral theory combined with the replica method. Our results suggest that inhomogeneities in the frozen spatial structure induce a gradual local freezing of the dipole axes upon decreasing temperature. However, at sufficiently high densities and dipole moments, the long-range interactions dominate the short-range frustration, resulting in a ferroelectric transition. The estimated transition temperatures depend strongly on the degree of spatial correlation in the underlying system of frozen spheres. For a randomly frozen system, we find that the transition temperature is considerably lower than that predicted by mean field theory, and also lower than the temperature where simulations indicate the onset of glass-like behavior. Strong positional correlations can push the transition toward temperatures higher even than those observed for dipolar fluids. (C) 2001 American Institute of Physics.},
keywords = {GROUND-STATE, HARD-SPHERES, HYPERNETTED-CHAIN APPROXIMATION, INTEGRAL-EQUATION THEORY, ISING-MODEL, LIQUID-VAPOR INTERFACE, LOCAL-MEAN-FIELD, orientational order, ORNSTEIN-ZERNIKE APPROXIMATION, RANDOM ANISOTROPY},
isbn = {0021-9606},
url = {://000170647600035},
author = {Klapp, S. H. L. and Patey, G. N.}
}