Electronic Switching of Single Silicon Atoms by Molecular
Field Effects
Krishnan R. Harikumar
John C. Polanyi
Peter A. Sloan
Serge Ayissi
Werner A. Hofer
10.1021/ja062874c.s001
https://acs.figshare.com/articles/journal_contribution/Electronic_Switching_of_Single_Silicon_Atoms_by_Molecular_Field_Effects/3037567
We have observed on−off switching of scanning tunneling microscope current flow to silicon
adatoms of the Si(111)-(7 × 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.
2006-12-27 00:00:00
oscillation
surface
field effects
accounting
1 eV
magnitude change
chlorododecane
Electronic Switching
bistable dimeric corral
silicon adatoms
molecule
Single Silicon Atoms
configuration
Molecular Field EffectsWe
flow
alteration
scanning tunneling microscope