摘要翻译：
用Monte Carlo动力学模拟正方形格子气模型，研究了各向异性剥离对异质外延岛形状的影响。只有在分子沉积和表面扩散的情况下，岛生长为分枝状枝晶，类似于DLA。从边缘引入分子分离使岛屿紧凑。为了理解并五苯在氢封端Si(111)附近表面生长实验中观察到的各向异性岛形状，假设衬底台阶周围的分离不对称。边缘分子向更高的平台分离比向更低的平台分离更多。分子容易分离的岛边缘是光滑的，难以分离的是树枝状的。如果岛屿彼此靠近，岛屿倾向于排成一条线，因为从右侧岛屿光滑边缘分离的分子被输送到左侧岛屿的树枝状快速生长的边缘。
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英文标题：
《Two-Dimensional Island Shape Determined by Detachment》
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作者：
Yukio Saito and Ryo Kawasaki
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最新提交年份：
2007
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分类信息：

一级分类：Physics        物理学
二级分类：Materials Science        材料科学
分类描述：Techniques, synthesis, characterization, structure.  Structural phase transitions, mechanical properties, phonons. Defects, adsorbates, interfaces
技术，合成，表征，结构。结构相变，力学性质，声子。缺陷，吸附质，界面
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一级分类：Physics        物理学
二级分类：Statistical Mechanics        统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
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英文摘要：
  Effect of an anisotropic detachment on a heteroepitaxial island shape is studied by means of a kinetic Monte Carlo simulation of a square lattice gas model. Only with molecular deposition followed by surface diffusion, islands grow in a ramified dendritic shape, similar to DLA. Introduction of molecular detachment from edges makes islands compact. To understand an anisotropic island shape observed in the experiment of pentacene growth on a hydrogen-terminated Si(111) vicinal surface, asymmetry in detachment around the substrate step is assumed. Edge molecules detach more to the higher terrace than to the lower terrace. The island edge from which molecules are easy to detach is smooth and the one hard to detach is dendritic. If islands are close to each other, islands tend to align in a line, since detached molecules from the smooth edge of the right island are fed to the dendritic and fast growing edge of the left island.
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PDF链接：
https://arxiv.org/pdf/705.373