中国物理B ›› 2009, Vol. 18 ›› Issue (5): 1947-1954.doi: 10.1088/1674-1056/18/5/037
钱昌吉1, 李洪1, 钟瑞1, 罗孟波2, 叶高翔2
Qian Chang-Ji(钱昌吉)a), Li Hong(李洪)a), Zhong Rui(钟瑞)a), Luo Meng-Bo(罗孟波)b), and Ye Gao-Xiang(叶高翔)b)
摘要: We have studied the aggregation of particles on a hetero-substrate consisting of two different substrates A and B with finite surface barriers EAB and EBA between the AB and BA boundaries, respectively. With the diffusion energy limited aggregation (DELA) model, we find that the number of clusters and the mean radius of gyration of the clusters are dependent on the surface barriers EAB and EBA. For the case with a constant of EBA, a series of minima are summarized as EAB= (E0- kBAEBA)/ kAB with kAB and kBA being two integers, for main minima (kBA=kAB- 1) and two local minima (kBA=kAB and kBA=kAB + 1) between two neighbouring main minima.
中图分类号: (Diffusion of adsorbates, kinetics of coarsening and aggregation)