Preparing and regulating a bi-stable molecular switch by atomic manipulation
We present a scanning tunneling microscopy (STM) investigation into the influence of the STM tip on the adsorption site switching of polychlorinatedbiphenyl (PCB) molecules on the Si(111)-7×7 surface at room temperature. From an initially stable adsorption configuration, atomic manipulation by charg...
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th-cmuir.6653943832-517742018-09-04T06:14:39Z Preparing and regulating a bi-stable molecular switch by atomic manipulation S. Sakulsermsuk R. E. Palmer P. A. Sloan Materials Science Physics and Astronomy We present a scanning tunneling microscopy (STM) investigation into the influence of the STM tip on the adsorption site switching of polychlorinatedbiphenyl (PCB) molecules on the Si(111)-7×7 surface at room temperature. From an initially stable adsorption configuration, atomic manipulation by charge injection from the STM tip prepared a new bi-stable configuration that switched between two bonding arrangements. No switching rate bias dependence was found for +1.0 to +2.2V. Assuming a thermally driven switching process we find that the measured energy barriers to switching are influenced by the exact location of the STM tip by more than 10%. We propose that this energy difference is due the dispersion interaction between the tip and the molecule. © 2012 IOP Publishing Ltd. 2018-09-04T06:08:27Z 2018-09-04T06:08:27Z 2012-01-03 Journal 1361648X 09538984 2-s2.0-84866246297 10.1088/0953-8984/24/39/394014 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84866246297&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/51774 |
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Materials Science Physics and Astronomy S. Sakulsermsuk R. E. Palmer P. A. Sloan Preparing and regulating a bi-stable molecular switch by atomic manipulation |
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We present a scanning tunneling microscopy (STM) investigation into the influence of the STM tip on the adsorption site switching of polychlorinatedbiphenyl (PCB) molecules on the Si(111)-7×7 surface at room temperature. From an initially stable adsorption configuration, atomic manipulation by charge injection from the STM tip prepared a new bi-stable configuration that switched between two bonding arrangements. No switching rate bias dependence was found for +1.0 to +2.2V. Assuming a thermally driven switching process we find that the measured energy barriers to switching are influenced by the exact location of the STM tip by more than 10%. We propose that this energy difference is due the dispersion interaction between the tip and the molecule. © 2012 IOP Publishing Ltd. |
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author |
S. Sakulsermsuk R. E. Palmer P. A. Sloan |
author_facet |
S. Sakulsermsuk R. E. Palmer P. A. Sloan |
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S. Sakulsermsuk |
title |
Preparing and regulating a bi-stable molecular switch by atomic manipulation |
title_short |
Preparing and regulating a bi-stable molecular switch by atomic manipulation |
title_full |
Preparing and regulating a bi-stable molecular switch by atomic manipulation |
title_fullStr |
Preparing and regulating a bi-stable molecular switch by atomic manipulation |
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Preparing and regulating a bi-stable molecular switch by atomic manipulation |
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preparing and regulating a bi-stable molecular switch by atomic manipulation |
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2018 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84866246297&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/51774 |
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