Can Kondo-like behavior occur in open quantum dots?

J. P. Bird, A. Shailos, M. Elhassan, C. Prasad, K. M. Indlekofer, L. Shifren, R. Akis, D. K. Ferry, L. H. Lin, N. Aoki, Y. Ochiai, K. Ishibashi, Y. Aoyagi

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We discuss the possibility that a Kondo effect may arise in transport through open quantum dots, in which isolated periodic orbits, accessed by non-classical phase-space tunneling, serve as the localized charge that gives rise to the Kondo behavior. Some support for these ideas is shown to be provided by a simple formulation of the Anderson model, in which we assume the electron interaction strength within the dot to be strongly peaked at specific energies. Using this model, we are able to demonstrate behavior reminiscent of the metal-insulator transition, observed in our experimental studies of open quantum dots and dot arrays. The indication of these experiments appears to be that we enter a regime of many-body transport, which becomes effective once the temperature is lowered such that the discrete density of states of the dot becomes energetically resolved.

Original languageEnglish (US)
Pages (from-to)277-286
Number of pages10
JournalMicroelectronic Engineering
Volume63
Issue number1-3
DOIs
StatePublished - Aug 2002

Fingerprint

Semiconductor quantum dots
quantum dots
Kondo effect
Metal insulator transition
electron scattering
indication
Orbits
insulators
orbits
formulations
Electrons
metals
Experiments
Temperature
temperature
energy

Keywords

  • Kondo effect
  • Metal-insulator transition
  • Quantum chaos
  • Quantum dots

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Atomic and Molecular Physics, and Optics

Cite this

Bird, J. P., Shailos, A., Elhassan, M., Prasad, C., Indlekofer, K. M., Shifren, L., ... Aoyagi, Y. (2002). Can Kondo-like behavior occur in open quantum dots? Microelectronic Engineering, 63(1-3), 277-286. https://doi.org/10.1016/S0167-9317(02)00601-9

Can Kondo-like behavior occur in open quantum dots? / Bird, J. P.; Shailos, A.; Elhassan, M.; Prasad, C.; Indlekofer, K. M.; Shifren, L.; Akis, R.; Ferry, D. K.; Lin, L. H.; Aoki, N.; Ochiai, Y.; Ishibashi, K.; Aoyagi, Y.

In: Microelectronic Engineering, Vol. 63, No. 1-3, 08.2002, p. 277-286.

Research output: Contribution to journalArticle

Bird, JP, Shailos, A, Elhassan, M, Prasad, C, Indlekofer, KM, Shifren, L, Akis, R, Ferry, DK, Lin, LH, Aoki, N, Ochiai, Y, Ishibashi, K & Aoyagi, Y 2002, 'Can Kondo-like behavior occur in open quantum dots?', Microelectronic Engineering, vol. 63, no. 1-3, pp. 277-286. https://doi.org/10.1016/S0167-9317(02)00601-9
Bird JP, Shailos A, Elhassan M, Prasad C, Indlekofer KM, Shifren L et al. Can Kondo-like behavior occur in open quantum dots? Microelectronic Engineering. 2002 Aug;63(1-3):277-286. https://doi.org/10.1016/S0167-9317(02)00601-9
Bird, J. P. ; Shailos, A. ; Elhassan, M. ; Prasad, C. ; Indlekofer, K. M. ; Shifren, L. ; Akis, R. ; Ferry, D. K. ; Lin, L. H. ; Aoki, N. ; Ochiai, Y. ; Ishibashi, K. ; Aoyagi, Y. / Can Kondo-like behavior occur in open quantum dots?. In: Microelectronic Engineering. 2002 ; Vol. 63, No. 1-3. pp. 277-286.
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