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Probing electronic excitations in molecular conduction

B. Muralidharan·A. W. Ghosh·S. Datta
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Abstract

We identify experimental signatures in the current-voltage (I-V) characteristics of weakly contacted molecules directly arising from excitations in their many electron spectrum. The current is calculated using a multielectron master equation in the Fock space of an exact diagonalized model many-body Hamiltonian for a prototypical molecule. Using this approach, we explain several nontrivial features in frequently observed I-Vs in terms of a rich spectrum of excitations that may be hard to describe adequately with standard one-electron self-consistent field (SCF) theories.

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B. Muralidharan, A. W. Ghosh, S. Datta. 2005-10-25. Probing electronic excitations in molecular conduction. https://doi.org/10.1103/physrevb.73.155410

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