Statistical mechanics of the vicinal surfaces with adsorption

被引:11
作者
Akutsu, N
Akutsu, Y
Yamamoto, T
机构
[1] Osaka Electrocommun Univ, Fac Engn, Osaka 5728530, Japan
[2] Osaka Univ, Grad Sch Sci, Dept Phys, Toyonaka, Osaka 5600043, Japan
[3] Gunma Univ, Fac Engn, Dept Phys, Kiryu, Gumma 3760052, Japan
基金
日本学术振兴会;
关键词
equilibrium thermodynamics and statistical mechanics; Ising models; Monte Carlo simulations; faceting; step formation and bunching; surface tension; surface thermodynamics (including phase transitions); vicinal single crystal surfaces;
D O I
10.1016/S0039-6028(01)01255-9
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We study the vicinal surface with adsorption below the roughening temperature, using the restricted solid-on-solid model coupled with the Ising model. By the product-wavefunction renormalization group method, we calculate the surface gradient p and the adsorption coverage Theta as a function of the Andreev field eta which makes surface tilt. Combining Monte Carlo calculations, we show that there emerges effective attraction between the steps. This attractive interaction leads to instability against step bunching. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:475 / 479
页数:5
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