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Mechano-chemical manipulation of Sn chains on Si(1 0 0) by NC-AFM

Sweetman, Adam; Lekkas, Ioannis; Moriarty, Philip

Authors

Adam Sweetman

Ioannis Lekkas

Philip Moriarty



Abstract

We investigate the atomic structure of Sn dimer chains grown on the Si(1 0 0) surface using non-contact atomic force microscopy (NC-AFM) at cryogenic temperatures. We find that similar to the native Si(1 0 0) dimer structure, the ground state of the Sn dimer structure is buckled at low temperature. At 5 K we show that the buckling state of the Sn dimers may be controllably, and reversibly, manipulated with atomic precision by close approach of the tip, without modification of the underlying substrate buckling structure. At intermediate cryogenic temperatures we observe changes in the configuration of the dimer chains in the region where the tip-sample interaction is very weak, suggesting that the energy barrier to transit between configurations is sufficiently small to be surmounted at 78 K.

Journal Article Type Article
Publication Date Dec 30, 2016
Journal Journal of Physics: Condensed Matter
Print ISSN 0953-8984
Electronic ISSN 1361-648X
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 29
Issue 7
Article Number 074003
APA6 Citation Sweetman, A., Lekkas, I., & Moriarty, P. (2016). Mechano-chemical manipulation of Sn chains on Si(1 0 0) by NC-AFM. Journal of Physics: Condensed Matter, 29(7), doi:10.1088/1361-648X/29/7/074003
DOI https://doi.org/10.1088/1361-648X/29/7/074003
Keywords STM, NC-AFM, atomic manipulation, Si(1 0 0), semiconductor, tin
Publisher URL http://iopscience.iop.org/article/10.1088/1361-648X/29/7/074003/meta
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information This is an author-created, un-copyedited version of an article accepted for publication in Journal of Physics: Condensed Matter. The publisher is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://dx.doi.org/10.1088/1361-648X/29/7/074003.

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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