Dynamics of Au-induced nanowires on Ge(001)

SURFACE SCIENCE

卷:604

Article

Mocking, Tijs F.¹  Stam, Daan¹  Poelsema, Bene¹  Zandvliet, Harold J. W.¹ 

[1] Univ Twente, MESA, Inst Nanotechnol, NL-7500 AE Enschede, Netherlands

关键词: Scanning tunnelling microscopy;    Germanium;    Gold;   

DOI  :  10.1016/j.susc.2010.08.015

来源: Elsevier

【 摘 要 】

We have studied the dynamics of Au-induced nanowires on Ge(001) using scanning tunnelling microscopy. The ridges of these nanowires consist of buckled dimers that have their dimer bond aligned in a direction perpendicular to the nanowire direction. Neighbouring dimers have a preference to buckle in an opposite direction, leading to rows with a zigzag appearance. Dimers located at anti-phase boundaries continuously flip back and forth between their two buckled configurations. This process is thermally induced and occurs at an average frequency of 25 Hz at room temperature. (C) 2010 Elsevier B.V. All rights reserved.

【 授权许可】

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