Kondo temperature of SU(4) symmetric quantum dots

Michele Filippone, Cətəlin Paşcu Moca, Gergely Zaránd, Christophe Mora

Research output: Article

15 Citations (Scopus)

Abstract

A path integral approach is used to derive a closed analytical expression for the Kondo temperature of the SU(4) symmetrical Anderson model. In contrast to the SU(2) case, the prefactor of the Kondo temperature is found to display a peculiar orbital-energy (gate voltage) dependence, reflecting the presence of various SU(4) mixed valence fixed points. Our analytical expressions are tested against and confirmed by numerical renormalization group computations.

Original languageEnglish
Article number121406
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume90
Issue number12
DOIs
Publication statusPublished - szept. 25 2014

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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