Magnetically tunable Kondo-Aharonov-Bohm effect in a triangular quantum dot

T. Kuzmenko, K. Kikoin, Y. Avishai

Research output: Contribution to journalArticlepeer-review

92 Scopus citations

Abstract

The role of discrete orbital symmetry in mesoscopic physics is manifested in a system consisting of three identical quantum dots forming an equilateral triangle. Under a perpendicular magnetic field, this system demonstrates a unique combination of Kondo and Aharonov-Bohm features due to an interplay between continuous [spin-rotation SU(2)] and discrete (permutation C3v) symmetries, as well as U(1) gauge invariance. The conductance as a function of magnetic flux displays sharp enhancement or complete suppression depending on contact setups.

Original languageEnglish
Article number046601
JournalPhysical Review Letters
Volume96
Issue number4
DOIs
StatePublished - 1 Jan 2006

ASJC Scopus subject areas

  • Physics and Astronomy (all)

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