Coulomb Blockade and Kondo Effect in a Quantum Hall Antidot

H. -S. Sim; M. Kataoka; Hangmo Yi; N. Y. Hwang; M. -S. Choi; S. -R. E. Yang

doi:10.1103/PhysRevLett.91.266801

Coulomb Blockade and Kondo Effect in a Quantum Hall Antidot

Mesoscale and Nanoscale Physics 2009-11-10 v2

Authors: H. -S. Sim , M. Kataoka , Hangmo Yi , N. Y. Hwang , M. -S. Choi , S. -R. E. Yang

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Abstract

We propose a general capacitive model for an antidot, which has two localized edge states with different spins in the quantum Hall regime. The capacitive coupling of localized excess charges, which are generated around the antidot due to magnetic flux quantization, and their effective spin fluctuation can result in Coulomb blockade, h/(2e) Aharonov-Bohm oscillations, and the Kondo effect. The resultant conductance is in qualitative agreement with recent experimental data.

Keywords

coulomb blockade kondo effect quantum hall antidot aharonov-bohm oscillation capacitive model edge states

Cite

@article{arxiv.cond-mat/0305642,
  title  = {Coulomb Blockade and Kondo Effect in a Quantum Hall Antidot},
  author = {H. -S. Sim and M. Kataoka and Hangmo Yi and N. Y. Hwang and M. -S. Choi and S. -R. E. Yang},
  journal= {arXiv preprint arXiv:cond-mat/0305642},
  year   = {2009}
}

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3 figures, to appear in Physical Review Letters

Coulomb Blockade and Kondo Effect in a Quantum Hall Antidot

Abstract

Keywords

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