INIFTA   05425
INSTITUTO DE INVESTIGACIONES FISICO-QUIMICAS TEORICAS Y APLICADAS
Unidad Ejecutora - UE
artículos
Título:
Surface-diffusion-driven decay of patterns: beyond the small slopes approximation
Autor/es:
MARCOS F. CASTEZ
Revista:
JOURNAL OF PHYSICS CONDENSED MATTER
Editorial:
IOP PUBLISHING LTD
Referencias:
Año: 2010 vol. 22 p. 3450071 - 3450077
ISSN:
0953-8984
Resumen:
By combining analytical results and computer simulations, we studied the continuous theory of surface diffusion applied to the decay of periodic high-aspect-ratio patterned substrates. Ourresults show that, after a transient stage, and for a broad class of initial conditions, patterns adopt a ‘universal’ mathematically well-specified shape that depends on two coefficients. Moreover, we were able to determine the time-dependence of such coefficients, which enabled us to mathematically reconstruct the pattern’s shape at any subsequent time. So, our analysis can be a useful predictive theoretical tool for the design and interpretation of experiments onthermal treatments of high-aspect-ratio patterns.