Fragmentation pathways of nanofractal structures on surfaces

Article

关键词: THIN-FILM GROWTH;    MONTE-CARLO;    FRACTAL GROWTH;    EPITAXIAL-GROWTH;    ISLAND GROWTH;    DIFFUSION;    NANOSTRUCTURES;    MODEL;    RELAXATION;    SIMULATION;   

DOI  :  10.1103/PhysRevB.84.115408

来源: SCIE

【 摘 要 】

We present a theoretical analysis of the post-growth processes occurring in nanofractals grown on a surface. For this study we have developed a method that accounts for the internal dynamics of particles in a fractal. We demonstrate that the detachment of particles from the fractal and their diffusion within the fractal and over the surface determines the shape of the islands remaining on a surface after the fractal fragmentation. We consider different scenarios of fractal post-growth relaxation and analyze the time evolution of the island's morphology. The results of our calculations are compared with available experimental observations, and experiments in which the post-growth relaxation of deposited nanostructures can be tested are suggested.

【 授权许可】

Free