INVESTIGADORES
VIDALES Ana Maria
artículos
Título:
Correlated Site-Bond Ensembles: Statistical Equilibrium and Finite Size Effects
Autor/es:
LÓPEZ, R.H.; VIDALES, A M; ZGRABLICH, GIORGIO
Revista:
LANGMUIR
Editorial:
AMER CHEMICAL SOC
Referencias:
Lugar: Washington; Año: 2000 vol. 16 p. 3441 - 3445
ISSN:
0743-7463
Resumen:
This work presents a Monte Carlo analysis of the propagation of correlation strength in site-bond
square lattices generated through the dual site-bond model (DSBM), where the values of the property
assigned to sites and bonds are sampled from two uniform density distributions that may have some
overlapping area with each other. Correlations appearwhena construction principle is established. Although
this model has been extensively used inmanyphysical applications, such as adsorption and surface diffusion
on heterogeneous surfaces and percolation and transport processes in porous media, a careful study of the
way correlated topology is settled on through the system was lacking. The dependence of the relaxation
time needed to reach equilibrium and of the minimum size of the network to be used is established for
different correlation strengths, represented by the overlapping parameter ¿. A more accurate empirical
equation, relating the characteristic correlation length l0, corresponding to the spatial correlation function,
and ¿, is found, than the one used in former applications of the DSBM.