Artículo
Diffusion-limited aggregates grown on nonuniform substratres
Ramirez Pastor, Antonio Jose
; Cornette, Valeria Cecilia
; Centres, Paulo Marcelo
; Nieto Quintas, Felix Daniel
Fecha de publicación:
08/2013
Editorial:
Elsevier
Revista:
Physica A: Statistical Mechanics and its Applications
ISSN:
0378-4371
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In the present paper, patterns of diffusion-limited aggregation (DLA) grown on nonuniform substrates are investigated by means of Monte Carlo simulations. We consider a nonuniform substrate as the largest percolation cluster of dropped particles with different structures and forms that occupy more than a single site on the lattice. The aggregates are grown on such clusters, in the range the concentration, p, from the percolation threshold, pc up to the jamming coverage, pj. At the percolation threshold, the aggregates are asymmetrical and the branches are relatively few. However, for larger values of p, the patterns change gradually to a pure DLA. Tiny qualitative differences in this behavior are observed for different k sizes. Correspondingly, the fractal imension of the aggregates increases as p raises in the same range pc ≤ p ≤ pj. This behavior is analyzed and discussed in the framework of the existing theoretical approaches.
Palabras clave:
Adsorption
,
Fractals
,
Computer Simulations
,
Monte Carlo Method
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Articulos(INFAP)
Articulos de INST. DE FISICA APLICADA "DR. JORGE ANDRES ZGRABLICH"
Articulos de INST. DE FISICA APLICADA "DR. JORGE ANDRES ZGRABLICH"
Citación
Ramirez Pastor, Antonio Jose; Cornette, Valeria Cecilia; Centres, Paulo Marcelo; Nieto Quintas, Felix Daniel; Diffusion-limited aggregates grown on nonuniform substratres; Elsevier; Physica A: Statistical Mechanics and its Applications; 392; 23; 8-2013; 5879-5887
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