Nonlinear thermoelectric transport in single-molecule junctions: the effect of electron-phonon interactions

Abstract

In the present work, we theoretically analyze the steady-state thermoelectric transport through a single-molecule junction with a vibrating bridge. Thermally induced charge current in the system is explored using a nonequilibrium Green's functions formalism. We study combined effects of Coulomb interactions between charge carriers on the bridge and electron-phonon interactions on the thermocurrent beyond the linear response regime. It is shown that electron-vibron interactions may significantly affect both magnitude and direction of the thermocurrent, and vibrational signatures may appear.

8 pages, 5 figures, text revised, figures revised

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Cited by in corpus (2)

• Thermally induced charge current through long molecules
• Length-dependent Seebeck effect in single-molecule junctions beyond linear response regime