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Vidan A, Stopa M, Westervelt RM, et al. Multipeak Kondo effect in one- and two-electron quantum dots. Phys Rev Lett. 2006;96(15):156802doi: 10.1103/PhysRevLett.96.156802.
Vidan, A., Stopa, M., Westervelt, R. M., Hanson, M., & Gossard, A. C. (2006). Multipeak Kondo effect in one- and two-electron quantum dots. Physical review letters, 96(15), 156802. https://doi.org/10.1103/PhysRevLett.96.156802
Vidan, A, et al. "Multipeak Kondo effect in one- and two-electron quantum dots." Physical review letters vol. 96,15 (2006): 156802. doi: https://doi.org/10.1103/PhysRevLett.96.156802
Vidan A, Stopa M, Westervelt RM, Hanson M, Gossard AC. Multipeak Kondo effect in one- and two-electron quantum dots. Phys Rev Lett. 2006 Apr 21;96(15):156802. doi: 10.1103/PhysRevLett.96.156802. Epub 2006 Apr 17. PMID: 16712183.
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Phys Rev Lett. 2006 Apr 21;96(15):156802. doi: 10.1103/PhysRevLett.96.156802. Epub 2006 Apr 17.

Multipeak Kondo effect in one- and two-electron quantum dots.

Physical review letters

A Vidan, M Stopa, R M Westervelt, M Hanson, A C Gossard

Affiliations

  1. Division of Engineering and Applied Sciences and Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA.

PMID: 16712183 DOI: 10.1103/PhysRevLett.96.156802

Abstract

We have fabricated a few-electron quantum dot that can be tuned down to zero electrons while maintaining strong coupling to the leads. Using a nearby quantum point contact as a charge sensor, we can determine the absolute number of electrons in the quantum dot. We find several sharp peaks in the differential conductance, occurring at both zero and finite source-drain bias, for the one- and two-electron quantum dot. We attribute the peaks at finite bias to a Kondo effect through excited states of the quantum dot and investigate the magnetic field dependence of these Kondo resonances.

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