Vertical atomic manipulation with dynamic atomic-force microscopy without tip change via a multi-step mechanism

J. Bamidele, S.H. Lee, Y. Kinoshita, R. Turanský, Y. Naitoh, Y.J. Li, Y. Sugawara, I. Štich and L. Kantorovich ()
Additional contact information
J. Bamidele: King’s College London
S.H. Lee: Osaka University
Y. Kinoshita: Osaka University
R. Turanský: Center for Computational Materials Science, Institute of Physics, Slovak Academy of Sciences
Y. Naitoh: Osaka University
Y.J. Li: Osaka University
Y. Sugawara: Osaka University
I. Štich: Center for Computational Materials Science, Institute of Physics, Slovak Academy of Sciences
L. Kantorovich: King’s College London

Nature Communications, 2014, vol. 5, issue 1, 1-7

Abstract: Abstract Manipulation is the most exciting feature of the non-contact atomic force microscopy technique as it allows building nanostructures on surfaces. Usually vertical manipulations are accompanied by an abrupt tip modification leading to a change of contrast. Here we report on low-temperature experiments demonstrating vertical manipulations of ‘super’-Cu atoms on the p(2 × 1) Cu(110):O surface, both extractions to and depositions from the tip, when the imaging contrast remains the same. These results are rationalized employing a novel and completely general method that combines density functional theory calculations for obtaining energy barriers as a function of tip height and a Kinetic Monte Carlo algorithm for studying the tip dynamics and extraction of manipulation statistics. The model reveals a novel multi-step manipulation mechanism combining activated jumps of ‘super’-Cu atoms to/from the tip with their drag by and diffusion on the tip.

Date: 2014
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DOI: 10.1038/ncomms5476

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