Step stiffness and equilibrium island shape of Si(100) surface: Statistical-mechanical calculation by the imaginary path weight random-walk method

被引：22

作者：

Akutsu, N ^{[1
]}

Akutsu, Y ^{[1
]}

机构：

[1] OSAKA UNIV,DEPT PHYS,GRAD SCH SCI,TOYONAKA,OSAKA 560,JAPAN

来源：

SURFACE SCIENCE | 1997年 / 376卷 / 1-3期

关键词：

equilibrium thermodynamics and statistical mechanics; faceting; ising model; silicon; surface roughening; surface structure; morphology; roughness; and topography; surface thermodynamics;

D O I：

10.1016/S0039-6028(96)01302-7

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：

A step on a surface is well-modeled by an interface in the Ising model. We calculate anisotropic interface tension and interface stiffness for the square-lattice Ising model with both nearest-neighbor and next-nearest-neighbor interactions by an extended Feynman-Vdovichenko's random-walk method. The result gives a satisfactory explanation for experimentally measured step tension, step stiffness and island shape on the Si(100) surface. (C) 1997 Elsevier Science B.V.

引用

页码：92 / 98

页数：7

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