Phonon Rabi-assisted tunneling in diatomic molecules

Details Phonon Rabi-assisted tunneling in diatomic molecules Phonon Rabi-assisted tunneling in diatomic molecules

2005-03-30

arxiv.org/abs/cond-mat/0503696v3

Phys. Rev. B 72 121405(R) (2005).

Physics

Condensed Matter

Strongly Correlated Electrons

Updated version, 5 pages, 4 figures, to be published in Phys. Rev. B on 9/15

Scientific paper

10.1103/PhysRevB.72.121405

We study electronic transport in diatomic molecules connected to metallic contacts in the regime where both electron-electron and electron-phonon interactions are important. We find that the competition between these interactions results in unique resonant conditions for interlevel transitions and polaron formation: the Coulomb repulsion requires additional energy when electrons attempt phonon-assisted interlevel jumps between fully or partially occupied levels. We apply the equations of motion approach to calculate the electronic Green's functions. The density of states and conductance through the system are shown to exhibit interesting Rabi-like splitting of Coulomb blockade peaks and strong temperature dependence under the it interacting resonant conditions.

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