Fast coarsening in unstable epitaxy with desorption

被引：21

作者：

Smilauer, P

Rost, M

Krug, J

机构：

[1] Acad Sci Czech Republ, Inst Phys, Prague 16253 6, Czech Republic

[2] Univ Helsinki, Helsinki Inst Phys, FIN-00014 Helsinki, Finland

[3] Univ Essen Gesamthsch, Fachbereich Phys, D-45117 Essen, Germany

来源：

PHYSICAL REVIEW E | 1999年 / 59卷 / 06期

关键词：

D O I：

10.1103/PhysRevE.59.R6263

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Homoepitaxial growth is unstable towards the formation of pyramidal mounds when interlayer transport is reduced due to activation barriers to hopping at step edges. Simulations of a lattice model and a continuum equation show that a small amount of desorption dramatically speeds up the coarsening of the mound array, leading to coarsening exponents between 1/3 and 1/2. The underlying mechanism is the faster growth of larger mounds due to their lower evaporation rate. [S1063-651X(99)51006-4].

引用

收藏

页码：R6263 / R6266

页数：4

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