Nonequilibrium molecular vibrons: An approach based on the nonequilibrium Green function technique and the self-consistent Born approximation

Ryndyk, DA and Hartung, M and Cuniberti, G (2006) Nonequilibrium molecular vibrons: An approach based on the nonequilibrium Green function technique and the self-consistent Born approximation. PHYSICAL REVIEW B, 73 (4): 045420. ISSN 1098-0121,

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Abstract

We consider the nonequilibrium quantum vibrations of a molecule clamped between two macroscopic leads in a current-carrying state at finite voltages. Our approach is based on the nonequilibrium Green function technique and the self-consistent Born approximation. Kinetic equations for the average populations of electrons and vibrons are formulated in the weak electron-vibron coupling case and self-consistent solutions are obtained. The effects of vibron emission and vibronic instability are demonstrated using few-orbital models. The importance of the electron-vibron resonance is shown.

Item Type: Article
Uncontrolled Keywords: TUNNELING SPECTROSCOPY; CONDUCTANCE; TRANSISTORS; ADSORBATES; TRANSPORT; JUNCTIONS;
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics
Depositing User: Dr. Gernot Deinzer
Date Deposited: 03 Mar 2021 09:34
Last Modified: 03 Mar 2021 09:34
URI: https://pred.uni-regensburg.de/id/eprint/35264

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