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62. 


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



D. A. Ryndyk, M. Hartung, and G. Cuniberti

Physical Review B 73, 045420 (2006)

Selected for the January 30, 2006 issue of the
Virtual Journal of Nanoscale Science & Technology
.

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.



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doi absolute link10.1103/PhysRevB.73.045420
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publisher site (ISSN:1550-235X)
online abstractarXiv preprint: cond-mat/0508143
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IF(2005): 3.185


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