Vibrational instabilities in resonant electron transport through single-molecule junctions

Härtle R, Thoss M (2011)

Publication Type: Journal article

Publication year: 2011

Journal

Physical Review B American Physical Society

Publisher: American Physical Society

Book Volume: 83

Pages Range: 125419

URI: http://prb.aps.org/abstract/PRB/v83/i12/e125419

DOI: 10.1103/PhysRevB.83.125419

Abstract

We analyze various limits of vibrationally coupled resonant electron transport in single-molecule junctions. Based on a master equation approach, we discuss analytic and numerical results for junctions under a high bias voltage or weak electronic-vibrational coupling. It is shown that in these limits, the vibrational excitation of the molecular bridge increases indefinitely, i.e., the junction exhibits a vibrational instability. Moreover, our analysis provides analytic results for the vibrational distribution function and reveals that these vibrational instabilities are related to electron-hole pair creation processes. © 2011 American Physical Society.

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)

How to cite

APA:

Härtle, R., & Thoss, M. (2011). Vibrational instabilities in resonant electron transport through single-molecule junctions. Physical Review B, 83, 125419. https://doi.org/10.1103/PhysRevB.83.125419

MLA:

Härtle, Rainer, and Michael Thoss. "Vibrational instabilities in resonant electron transport through single-molecule junctions." Physical Review B 83 (2011): 125419.

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