Abbasi-Pérez, D, Sang, H, Junqueira, FLQ et al. (4 more authors) (2021) Cyclic Single Atom Vertical Manipulation on a Nonmetallic Surface. The Journal of Physical Chemistry Letters, 12 (46). pp. 11383-11390. ISSN 1948-7185
Abstract
Motivated by the quest for experimental procedures capable of controlled manipulation of single atoms on surfaces, we set up a computational strategy that explores the cyclical vertical manipulation of a broad set of single atoms on the GaAs(110) surface. First-principles simulations of atomic force microscope tip–sample interactions were performed considering families of GaAs and Au-terminated tip apexes with varying crystalline termination. We identified a subset of tips capable of both picking up and depositing an adatom (Ga, As, Al, and Au) any number of times via a modify–restore cycle that “resets” the apex of the scanning probe to its original structure at the end of each cycle. Manipulation becomes successful within a certain window of lateral and vertical tip distances that are observed to be different for extracting and depositing each atom. A practical experimental protocol of special utility for potential cyclical manipulation of single atoms on a nonmetallic surface is proposed.
Metadata
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Copyright, Publisher and Additional Information: | © 2021 The Authors. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0) (https://creativecommons.org/licenses/by-nc-nd/4.0/) | ||||
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Institution: | The University of Leeds | ||||
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Molecular & Nanoscale Physics | ||||
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Depositing User: | Symplectic Publications | ||||
Date Deposited: | 08 Apr 2022 11:02 | ||||
Last Modified: | 08 Apr 2022 11:02 | ||||
Status: | Published | ||||
Publisher: | American Chemical Society (ACS) | ||||
Identification Number: | https://doi.org/10.1021/acs.jpclett.1c02271 |