English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/21778
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Study of dipolar fluid inclusions in charged random matrices

AutorFernaud, M. J.; Lomba, Enrique ; Martín, C. ; Levesque, D.; Weis, J. J.
Palabras claveStatistical mechanics
Digital simulation
Monte Carlo methods
Fecha de publicación1-jul-2003
EditorAmerican Institute of Physics
CitaciónJournal of Chemical Physics 119(1): 364 (2003)
ResumenStructural, thermodynamic, and dielectric properties of a dipolar fluid confined in a charged random matrix are studied by means of grand canonical Monte Carlo simulation and replica Ornstein–Zernike integral equations in the hypernetted chain approximation. The fluid is modeled by a system of dipolar hard spheres. Two matrix topologies are considered: a frozen restricted primitive model matrix and a frozen hard sphere fluid with randomly distributed negative and positive charges. Both models lead to similar results in most cases, with significant deviations from the behavior of the corresponding equilibrated mixtures. The dielectric behavior is particularly interesting, since the effect of partial quenching on the equilibrated mixture recovers the electrostatics of the pure dipolar fluid but with the presence of Coulomb tails in the dipole–dipole total correlations. Differences between the two matrix models arise more vividly in the low density regime, in which the matrix with randomly distributed charges tends to enhance dipole association around the matrix particles. The integral equation results are in relatively good agreement with the computer simulation estimates.
Descripción9 pages, 9 figures, 2 tables.-- PACS: 05.20.Jj; 02.50.Ng; 05.10.Ln; 02.30.Rz
Versión del editorhttp://dx.doi.org/10.1063/1.1576377
Aparece en las colecciones: (IQFR) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
GetPDFServlet.pdf131,8 kBAdobe PDFVista previa
Mostrar el registro completo

Artículos relacionados:

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.