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Negative differential resistance in the scanning-tunneling spectroscopy of organic molecules
Open accessAbstract
In the interpretation of scanning-tunneling spectroscopy data on molecular nanostructures the tunneling conductance is often assumed to be proportional to the local density of states of the molecule. This precludes the possibility of observing negative differential resistance (NDR). We report here the observation of NDR in the current-voltage $(I\ensuremath{-}V)$ characteristics of a self-assembled monolayer of $4\ensuremath{-}p\ensuremath{-}\mathrm{terphenylthiol}$ molecules on the Au(111) surface measured using a platinum tip. We argue that the NDR arises from narrow features in the local density of states of the tip apex atom and show that depending on the electrostatic potential profile across the system, NDR could be observed in one or both bias directions.
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Electronic Transport in Mesoscopic Systems
Datta, S. (1995) · doi:10.1017/cbo9780511805776 · Cited by 7,704
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Cited by
Molecular Electronic Junctions
McCreery, R. L. (2004) · Chemistry of Materials · doi:10.1021/cm049517q · Cited by 555
Metadata
- Authors
- Xue, Y., Datta, S., Hong, S., Reifenberger, R., Henderson, J., & Kubiak, C.
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 1999-03
- Volume
- 59
- Issue
- 12
- Pages
- R7852-R7855
- ISSN
- 0163-1829 (ISSN-L)
- 1095-3795
- OpenAlex
- W2089658549
- Cited by
- 238
- References
- 1
- FWCI
- 12.90
- Type
- journal article
- Language
- en
- Open access
- green
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- Xue, Y., Datta, S., Hong, S., Reifenberger, R., Henderson, J., & Kubiak, C. (1999). Negative differential resistance in the scanning-tunneling spectroscopy of organic molecules. Physical Review B. https://doi.org/10.1103/physrevb.59.r7852
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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