Electronic excitations of a single molecule contacted in a three-terminal configuration

Edgar A. Osorio; Kevin O'Neill; Maarten Wegewijs; Nicolai Stuhr-Hansen; Jens Paaske; Thomas Bjornholm; Herre S. J. van der Zant

doi:10.1021/nl0715802

arXiv · 0711.2592

Electronic excitations of a single molecule contacted in a three-terminal configuration

Edgar A. Osorio·Kevin O'Neill·Maarten Wegewijs·Nicolai Stuhr-Hansen·Jens Paaske·Thomas Bjornholm·Herre S. J. van der Zant

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Abstract

Low-temperature three-terminal transport measurements through a thiol end-capped Pi -conjugated molecule have been carried out. Electronic excitations, including zero and finite-bias Kondo-effects have been observed and studied as a function of magnetic field. Using a simplified two-orbital model we have accounted for the spin and the electronic configuration of the first four charge states of the molecule. The charge-dependent couplings to gate, source and drain electrodes suggest a scenario in which charges and spins are localized at the ends of the molecule, close to the electrodes.

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Edgar A. Osorio, Kevin O'Neill, Maarten Wegewijs, Nicolai Stuhr-Hansen, Jens Paaske, Thomas Bjornholm, Herre S. J. van der Zant. 2007-11-16. Electronic excitations of a single molecule contacted in a three-terminal configuration. https://doi.org/10.1021/nl0715802

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