Long range substrate mediated mass transport on metal surfaces induced by adatom clusters

被引：26

作者：

Bulou, H ^{[1
]}

Bucher, JP ^{[1
]}

机构：

[1] Univ Strasbourg, UMR 7504, Inst Phys & Chim Mat Strasbourg, F-67034 Strasbourg, France

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.96.076102

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Mass transport at surfaces can proceed either (i) by hopping diffusion of atoms on top of the surface from one site to another or (ii) by propagation of small displacements from one atom to the next within the topmost atomic layer. In the latter case, a long range substrate mediated mass transport has been postulated but never observed explicitly. Experimental and theoretical evidence is shown here for the occurrence of such a mechanism on the reconstructed Au(111) surface, where the movement is shown to be well described by a soliton.

引用

页数：4

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