Communication: Mode-selective vibrational excitation induced by nonequilibrium transport processes in single-molecule junctions

Härtle R, Volkovich R, Thoss M, Peskin U (2010)

Publication Type: Journal article

Publication year: 2010

Journal

Journal of Chemical Physics AIP Publishing

Book Volume: 133

Pages Range: 081102

URI: http://jcp.aip.org/resource/1/jcpsa6/v133/i8/p081102_s1

DOI: 10.1063/1.3474464

Abstract

In a nanoscale molecular junction at finite bias voltage, the intramolecular distribution of vibrational energy can strongly deviate from the thermal equilibrium distribution and specific vibrational modes can be selectively excited in a controllable way, regardless of the corresponding mode frequency. This is demonstrated for generic models of asymmetric molecular junctions with localized electronic states, employing a master equation as well as a nonequilibrium Green's function approach. It is shown that the applied bias voltage controls the excitation of specific vibrational modes by tuning the efficiency of vibrational cooling processes due to energy exchange with the leads. © 2010 American Institute of Physics.

Authors with CRIS profile

Rainer Härtle Professur für Theoretische Physik mit dem Schwerpunkt Molekulare Materialien Michael Thoss Professur für Theoretische Physik mit dem Schwerpunkt Molekulare Materialien

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials (EAM)

Involved external institutions

Technion - Israel Institute of Technology IL Israel (IL)

How to cite

APA:

Härtle, R., Volkovich, R., Thoss, M., & Peskin, U. (2010). Communication: Mode-selective vibrational excitation induced by nonequilibrium transport processes in single-molecule junctions. Journal of Chemical Physics, 133, 081102. https://doi.org/10.1063/1.3474464

MLA:

Härtle, Rainer, et al. "Communication: Mode-selective vibrational excitation induced by nonequilibrium transport processes in single-molecule junctions." Journal of Chemical Physics 133 (2010): 081102.

BibTeX: Download