Electronic Switching of Single Silicon Atoms by Molecular Field-Effects

KR Harikumar; JC Polanyi; Peter Sloan; S Ayissi; WA Hofer

doi:10.1021/ja062874c

Electronic Switching of Single Silicon Atoms by Molecular Field-Effects

KR Harikumar, JC Polanyi, Peter Sloan, S Ayissi, WA Hofer

Physics and Astronomy

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33 Citations (Scopus)

Abstract

We have observed on-off switching of scanning tunneling microscope current flow to silicon adatoms of the Si(111)-(7 x 7) surface that are enclosed within a bistable dimeric corral of self-assembled chlorododecane molecules. These thermally activated oscillations amounted to an order of magnitude change in the current. Theory showed that small changes in molecular configuration could cause alterations in the corralled adatom's electronic energy by as much as 1 eV due to local field effects, accounting for the observed current switching.

Original language	English
Pages (from-to)	16791-16797
Number of pages	7
Journal	Journal of the American Chemical Society
Volume	128
Issue number	51
DOIs	https://doi.org/10.1021/ja062874c
Publication status	Published - 27 Dec 2006

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abstract = "We have observed on-off switching of scanning tunneling microscope current flow to silicon adatoms of the Si(111)-(7 x 7) surface that are enclosed within a bistable dimeric corral of self-assembled chlorododecane molecules. These thermally activated oscillations amounted to an order of magnitude change in the current. Theory showed that small changes in molecular configuration could cause alterations in the corralled adatom's electronic energy by as much as 1 eV due to local field effects, accounting for the observed current switching.",

author = "KR Harikumar and JC Polanyi and Peter Sloan and S Ayissi and WA Hofer",

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AU - Harikumar, KR

AU - Polanyi, JC

AU - Sloan, Peter

AU - Ayissi, S

AU - Hofer, WA

PY - 2006/12/27

Y1 - 2006/12/27

N2 - We have observed on-off switching of scanning tunneling microscope current flow to silicon adatoms of the Si(111)-(7 x 7) surface that are enclosed within a bistable dimeric corral of self-assembled chlorododecane molecules. These thermally activated oscillations amounted to an order of magnitude change in the current. Theory showed that small changes in molecular configuration could cause alterations in the corralled adatom's electronic energy by as much as 1 eV due to local field effects, accounting for the observed current switching.

AB - We have observed on-off switching of scanning tunneling microscope current flow to silicon adatoms of the Si(111)-(7 x 7) surface that are enclosed within a bistable dimeric corral of self-assembled chlorododecane molecules. These thermally activated oscillations amounted to an order of magnitude change in the current. Theory showed that small changes in molecular configuration could cause alterations in the corralled adatom's electronic energy by as much as 1 eV due to local field effects, accounting for the observed current switching.

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DO - 10.1021/ja062874c

M3 - Article

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SP - 16791

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JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

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Electronic Switching of Single Silicon Atoms by Molecular Field-Effects

Abstract

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