Adatom self-diffusion on Pt (100) surface by an ad-dimer migrating

被引：0

作者：

庄军

刘磊

机构：

[1] Department of Physics

[2] State Key Joint Laboratory for Materials Modification by Laser

[3] Ion and Electron Beams

[4] Fudan University

[5] Shanghai

[6] China

[7] Shanghai

来源：

ScienceinChina,SerA. | 2000年 / Ser.A.2000卷 / 10期

关键词：

D O I：

暂无

中图分类号：

O482 [固体性质];

学科分类号：

摘要：

<正> We study the self-diffusion of adatom on Pt(100) surface by molecular dynamics. The metal is modeled by the surface embedded-atom potential. Besides the conventional concerted exchange mechanism, a new exchange mechanism in which an ad-dimer diffuses by a concerted motion of three atoms is observed. The importance is that it could become a dominant diffusion mechanism in some cases.

引用

页码：1108 / 1113

页数：6