Electronic Excitations of a Single Molecule Contacted in a Three-Terminal Configuration
- 17 October 2007
- journal article
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 7 (11), 3336-3342
- https://doi.org/10.1021/nl0715802
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.Keywords
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