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谭志杰

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期刊论文

Pattern formation on nonuniform surfaces by correlated random sequential absorptions

谭志杰Zhi-Jie Tan Xian-Wu Zou* Wei Zhang and Zhun-Zhi Jin

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摘要/描述

The pattern formation on nonuniform surfaces by correlated-random sequential absorption (CRSA) Process has been investigated by computer simulations. The nonuniform surfaces are represented by percolation clusters with probabilities ps and ps stands for the nonuniform degree of surfaces. The interactions between the particles and the defects in surfaces are involved by introducing a sticking coefficient s. When s-0, the CRSA process is controlled by the absorption of surfaces and the correlation between particles. With the correlation increasing from a weak limit to a strong one, the cluster consisting of absorbed particles changes from the dispersed pattern of site percolation to correlated percolation, and then to Leath percolation clusters. When s-1 and ps-pc, the CRSA process is dominated by the absorption of the defects, where pc is the threshold of percolations. The patterns appear randomly dispersed in spite of the correlation. With the decrease of s and increase of ps, the interaction controlling the CRSA process changes from the absorption of defects to that of surface and the correlation between particles gradually. For the system s-0, the transition correlation exponent ac=ds , where ds is the fractal dimension of the percolation surfaces.

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【免责声明】以下全部内容由[谭志杰]上传于[2010年07月30日 11时15分01秒],版权归原创者所有。本文仅代表作者本人观点,与本网站无关。本网站对文中陈述、观点判断保持中立,不对所包含内容的准确性、可靠性或完整性提供任何明示或暗示的保证。请读者仅作参考,并请自行承担全部责任。

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