Transformation to soluble model for structural phase transition from (4x1) to (8x"2") of In-adsorbed Si(111) surface

被引：4
作者：
Yagi, Yoichiro
Yoshimori, Akio
Kakitani, Kiminori
Kaji, Hiroko
机构：
[1] Okayama Univ Sci, Dept Comp Simulat, Okayama 7000005, Japan
[2] Okayama Univ Sci, Dept Elect Engn, Okayama 7000005, Japan
来源：
SURFACE SCIENCE | 2007年 / 601卷 / 06期
基金：
中国国家自然科学基金; 日本学术振兴会;
关键词：
Ising models; Monte Carlo simulation; LEED; scanning tunneling microscopy; X-ray scattering; diffraction; and reflection; surface thermodynamics (including phase transitions); indium; silicon;
D O I：
10.1016/j.susc.2007.01.047
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：
The Ising model proposed previously for the structural phase transition from (4 x 1) to (8 x "2") of In-adsorbed Si(111) surface, Hamiltonian of which is consisting of a two-spin interaction as well as a four-spin interaction is shown to be equivalent in thermodynamic properties to a soluble Ising model with two-spin interactions. Temperature dependence of the long range order and the transition temperature can now be determined from the exact formulae. Comparison between the simulation results and those from the exact formulae is made to see accuracy of the simulation. (c) 2007 Elsevier B.V. All rights reserved.
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收藏
页码：1642 / 1645
页数：4
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