External stress as a way to control Au(111) reconstruction

SURFACE SCIENCE

卷:714

Article

Chauraud, D.¹  Durinck, J.²  Vernisse, L.²  Smalley, S.²  Drouet, M.²  Coupeau, C.² 

[1] Friedrich Alexander Univ Erlangen Nurnberg FAU, Inst 1, Dept Mat Sci & Engn, Erlangen, Germany

[2] Univ Poitiers, UPR 3346, CNRS, ENSMA,Inst P, Poitiers, France

关键词: Surface Reconstruction;    Scanning Tunneling Microscopy;    Molecular Dynamics;   

DOI  :  10.1016/j.susc.2021.121908

来源: Elsevier

【 摘 要 】

We report investigations on gold single crystals carried out with the help of an original experimental set-up, combining a scanning tunneling microscope and a compression device under ultra high vacuum, that allows for in situ observations of stressed surfaces at the atomic scale. It is observed that a macroscopic compression strain may induce a reorganization of the Au(111) surface reconstruction, known as the chevron-like pattern. Molecular dynamics simulations using a modified embedded atom method potential have been carried out to highlight the elementary dislocation mechanisms at the origin of such an evolution.

【 授权许可】

Free