Progress in characterizing submonolayer island growth: Capture-zone distributions, growth exponents, & hot precursors

[摘要] In studies of epitaxial growth, analysis of the distribution of the areas of capture zones (i.e. proximity polygons or Voronoi tessellations with respect to island centers) is often the best way to extract the critical nucleus size i. For non-random nucleation the normalized areas s of these Voronoi cells are well described by the generalized Wigner distribution (GWD) Pβ(s) = asβexp(-bs2), particularly in the central region 0.5

[发布机构] Dept. Physics, University of Maryland, College Park; MD; 20742-4111, United States^1;CMTC, University of Maryland, College Park; MD; 20742-4111, United States^2;Rice Quantum Institute and MSNE Department, Rice University, Houston; TX; 77005, United States^3;Departamento de Fisica, Universidad Del Valle, Cali; A.A. 25360, Colombia^4

[效力级别] 计算机科学 [学科分类] 计算机科学（综合）

[关键词] Analysis techniques;Critical nucleus size;Diffusion limited aggregation;Fragmentation models;Island size distribution;Submonolayer island growth;Voronoi tessellations;Wigner Distribution