Current noise in single-molecule junctions induced by electronic-vibrational coupling

Schinabeck C, Härtle R, Weber HB, Thoss M (2014)


Publication Type: Journal article, Letter

Publication year: 2014

Journal

Publisher: American Physical Society

Book Volume: 90

Journal Issue: 7

DOI: 10.1103/PhysRevB.90.075409

Abstract

The influence of multiple vibrational modes on current fluctuations in electron transport through single molecule junctions is investigated. Our analysis is based on a generic model of a molecular junction, which comprises a single electronic state on the molecular bridge coupled to multiple vibrational modes and fermionic leads, and employs a master equation approach. The results reveal that in molecular junctions with multiple vibrational modes, already weak to moderate electronic-vibrational coupling may result in high noise levels, especially at the onset of resonant transport, in accordance with the experimental findings of Secker et al. [Phys. Rev. Lett. 106, 136807 (2011)]. The underlying mechanisms are analyzed in some detail.

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How to cite

APA:

Schinabeck, C., Härtle, R., Weber, H.B., & Thoss, M. (2014). Current noise in single-molecule junctions induced by electronic-vibrational coupling. Physical Review B, 90(7). https://dx.doi.org/10.1103/PhysRevB.90.075409

MLA:

Schinabeck, Christian, et al. "Current noise in single-molecule junctions induced by electronic-vibrational coupling." Physical Review B 90.7 (2014).

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