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Scaling relation of domain competition on(2+1)-dimensional ballistic deposition model with surface diffusion
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作者 Kenyu Osada Hiroyasu Katsuno +1 位作者 Toshiharu Irisawa Yukio Saito 《Journal of Semiconductors》 EI CAS CSCD 2016年第9期12-17,共6页
During heteroepitaxial overlayer growth multiple crystal domains nucleated on a substrate surface compete with each other in such a manner that a domain covered by neighboring ones stops growing.The number density of ... During heteroepitaxial overlayer growth multiple crystal domains nucleated on a substrate surface compete with each other in such a manner that a domain covered by neighboring ones stops growing.The number density of active domains ρ decreases as the height h increases.A simple scaling argument leads to a scaling law of ρ~ h^(-γ) with a coarsening exponent γ=d/z,where d is the dimension of the substrate surface and z the dynamic exponent of a growth front.This scaling relation is confirmed by performing kinetic Monte Carlo simulations of the ballistic deposition model on a two-dimensional(d=2) surface,even when an isolated deposited particle diffuses on a crystal surface. 展开更多
关键词 domain competition ballistic deposition model Kardar-Parisi-Zhang universality class surface diffusion
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