Sweetman, A orcid.org/0000-0002-7716-9045, Harivyasi, SS orcid.org/0000-0002-2174-5226, Henry, J et al. (1 more author) (2020) Imaging and manipulation of adsorbed Pb adatom structures on the Si(100) surface by noncontact atomic force microscopy. Physical Review B, 102 (23). 235417. ISSN 2469-9950
Abstract
We performed imaging and manipulation of epitaxially grown Pb adatom structures on the Si(100) surface by noncontact atomic force microscopy (NC-AFM) in ultra-high-vacuum (UHV) and at cryogenic temperatures. We observe several distinct contrast modes during imaging, which we assign to termination of the scanning probe tip by either a single Si, or single Pb, atom, via quantitative comparison of atomic resolution force spectroscopy experiments with ab initio density functional theory (DFT) simulations. We show that the Pb adatom structures can be controllably manipulated via mechanochemical means and identify a novel semideterministic manipulation strategy that arises from the combination of low temperature operation and the asymmetric diffusion barriers present on the Si(100) surface.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | ©2020 American Physical Society. This is an author produced version of an article published in Physical Review B. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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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 |
Funding Information: | Funder Grant number EU - European Union 757720 Royal Society UF160494 |
Depositing User: | Symplectic Publications |
Date Deposited: | 05 Jan 2021 12:07 |
Last Modified: | 05 Jan 2021 22:23 |
Status: | Published |
Publisher: | American Physical Society (APS) |
Identification Number: | 10.1103/physrevb.102.235417 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:169330 |