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Probing local electric field and conformational switching in single-molecule break junctions
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Rahimi, Maryam and Troisi, Alessandro (2009) Probing local electric field and conformational switching in single-molecule break junctions. Physical Review B (Condensed Matter and Materials Physics), Vol.79 (No.11). article no. 113413 . doi:10.1103/PhysRevB.79.113413 ISSN 1098-0121.
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Official URL: http://dx.doi.org/10.1103/PhysRevB.79.113413
Abstract
By performing inelastic electron tunneling spectroscopy on single-molecule junctions fabricated through electromigration, we were able to detect polarity-dependent frequency shifts in the molecular vibrational spectra. This observation in conjunction with a simple theoretical model is used to infer the magnitude of local electric field (a crucial and previously inaccessible parameter for understanding charge transport in single-molecule junctions) on the molecule. Electric field induced conformational changes are also detected within this set of measurements.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry Faculty of Science, Engineering and Medicine > Science > Centre for Scientific Computing |
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Library of Congress Subject Headings (LCSH): | Electrodiffusion, Molecular electronics, Tunneling spectroscopy, Charge transfer | ||||
Journal or Publication Title: | Physical Review B (Condensed Matter and Materials Physics) | ||||
Publisher: | American Physical Society | ||||
ISSN: | 1098-0121 | ||||
Official Date: | March 2009 | ||||
Dates: |
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Volume: | Vol.79 | ||||
Number: | No.11 | ||||
Number of Pages: | 4 | ||||
Page Range: | article no. 113413 | ||||
DOI: | 10.1103/PhysRevB.79.113413 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | Gordon and Betty Moore Foundation, Engineering and Physical Sciences Research Council (EPSRC) |
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