A Tunable Kondo Effect in Quantum Dots

DOI Web Site 86 Citations
  • Sara M. Cronenwett
    S. M. Cronenwett, Department of Applied Physics and DIMES, Delft University of Technology, Post Office Box 5046, 2600 GA Delft, Netherlands, and Department of Physics, Stanford University, Stanford, CA, 94305–4060, USA. T. H. Oosterkamp and L. P. Kouwenhoven, Department of Applied Physics and DIMES, Delft University of Technology, Post Office Box 5046, 2600 GA Delft, Netherlands.
  • Tjerk H. Oosterkamp
    S. M. Cronenwett, Department of Applied Physics and DIMES, Delft University of Technology, Post Office Box 5046, 2600 GA Delft, Netherlands, and Department of Physics, Stanford University, Stanford, CA, 94305–4060, USA. T. H. Oosterkamp and L. P. Kouwenhoven, Department of Applied Physics and DIMES, Delft University of Technology, Post Office Box 5046, 2600 GA Delft, Netherlands.
  • Leo P. Kouwenhoven
    S. M. Cronenwett, Department of Applied Physics and DIMES, Delft University of Technology, Post Office Box 5046, 2600 GA Delft, Netherlands, and Department of Physics, Stanford University, Stanford, CA, 94305–4060, USA. T. H. Oosterkamp and L. P. Kouwenhoven, Department of Applied Physics and DIMES, Delft University of Technology, Post Office Box 5046, 2600 GA Delft, Netherlands.

Description

<jats:p>A tunable Kondo effect has been realized in small quantum dots. A dot can be switched from a Kondo system to a non-Kondo system as the number of electrons on the dot is changed from odd to even. The Kondo temperature can be tuned by means of a gate voltage as a single-particle energy state nears the Fermi energy. Measurements of the temperature and magnetic field dependence of a Coulomb-blockaded dot show good agreement with predictions of both equilibrium and nonequilibrium Kondo effects.</jats:p>

Journal

  • Science

    Science 281 (5376), 540-544, 1998-07-24

    American Association for the Advancement of Science (AAAS)

Citations (86)*help

See more

Details 詳細情報について

Report a problem

Back to top