Atomic modification of stepped metal surfaces using vertical single-atom manipulation with a trimer-apex tip: First-principles and semiempirical simulations

作者：Xie, Y. Q.; Liu, F.; Huang, L.^*

来源：Surface and Coatings Technology, 2010, 204(20): 3254-3257.

DOI：10.1016/j.surfcoat.2010.03.025

• Single-atom manipulation
• Single crystal surface
• Aluminium
• Platinum
• Computing simulations

We propose a controlled method to modify the atomic step of an Al(111) surface with atomic precision using the tip of the scanning probe microscope by first-principles molecular static simulations. Single atoms can be extracted vertically and repositioned at a mono-atomic step of an Al(111) surface using vertical single-atom manipulation with an Al trimer-apex tip. This reversible process uses only atomic tip-surface interactions and allows the precision modification of the metal surface at the atomic scale. The method is also applicable to multi-atomic steps and to the other stepped metal surfaces like Pt(111) according to our semiempirical simulations using embedded-atom-method potentials.

• 出版日期2010-7-15
• 单位上海师范大学