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http://cmuir.cmu.ac.th/jspui/handle/6653943832/51774
Title: | Preparing and regulating a bi-stable molecular switch by atomic manipulation |
Authors: | S. Sakulsermsuk R. E. Palmer P. A. Sloan |
Authors: | S. Sakulsermsuk R. E. Palmer P. A. Sloan |
Keywords: | Materials Science;Physics and Astronomy |
Issue Date: | 3-Jan-2012 |
Abstract: | 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. |
URI: | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84866246297&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/51774 |
ISSN: | 1361648X 09538984 |
Appears in Collections: | CMUL: Journal Articles |
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