Influence of monomolecular steps on the first-order structure transition of an InAs(001) surface.
Influence of monomolecular steps on the first-order structure transition of an InAs(001) surface.
复制标题
单分子台阶对 InAs(001) 表面一级结构转变的影响。
DOI：
10.1103/physrevlett.70.1299
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发表时间：
1993
影响因子：
8.6
通讯作者：
Horikoshi
中科院分区：
文献类型：
--
作者：
Yamaguchi;Horikoshi
利用反射高能电子衍射研究了InAs（001）错取向表面从as - 2x2到in - 4x2的表面化学计量转变。两种结构之间的一阶相变引起的迟滞宽度在面向[110]方向的表面上小于面向正确方向的表面。蒙特卡罗模拟结果表明，这种现象可以用单分子台阶的存在引起的一级表面化学计量转变的有限尺寸效应来解释。
The surface stoichiometry transition from As-covered 2× 4 to In-covered 4× 2 on InAs (001) misoriented surface is studied by reflection high-energy electron diffraction. The width of the hysteresis due to the first-order phase transition between these two structures is smaller with a surface misoriented toward the [11 0] direction than that with an exactly oriented surface. The results from Monte Carlo simulation indicate that this phenomenon can be explained by the finite size effect on the first-order surface stoichiometry transition caused by the existence of monomolecular steps.