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

Sweetman, Adam and Lekkas, Ioannis and Moriarty, Philip (2016) Mechano-chemical manipulation of Sn chains on Si(1 0 0) by NC-AFM. Journal of Physics: Condensed Matter, 29 (7). 074003/1-074003/12. ISSN 1361-648X

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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.

Item Type: Article
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.
Keywords: STM, NC-AFM, atomic manipulation, Si(1 0 0), semiconductor, tin
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Physics and Astronomy
Identification Number: 10.1088/1361-648X/29/7/074003
Depositing User: Eprints, Support
Date Deposited: 11 Jan 2017 12:30
Last Modified: 18 Oct 2017 18:59
URI: http://eprints.nottingham.ac.uk/id/eprint/39766

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