Origin of compact triangular islands in metal-on-metal growth

被引：92

作者：

Ovesson, S ^{[1
]}

Bogicevic, A

Lundqvist, BI

机构：

[1] Chalmers Univ Technol, Dept Appl Phys, S-41296 Gothenburg, Sweden

[2] Univ Gothenburg, S-41296 Gothenburg, Sweden

[3] Sandia Natl Labs, Dept Surface & Interface Sci, Albuquerque, NM 87185 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.83.2608

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The microscopic origin of compact triangular islands on close-packed surfaces is identified using kinetic Monte Carlo simulations with energy barriers obtained from density-functional calculations. In contrast to earlier accounts, corner diffusion anisotropy is found to control the shape of compact islands at intermediate temperatures. We rationalize the correlation between the orientation of dendrites grown at low temperatures and triangular islands grown at higher temperatures, and explain why in some systems dendrites grow fat before turning compact.

引用

页码：2608 / 2611

页数：4

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