Fermi/non-Fermi mixing in SU(N) Kondo effect

Taro Kimura, Sho Ozaki

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


We apply conformal field theory analysis to the k-channel SU(N) Kondo system, and find a peculiar behavior in the cases N > k > 1, which we call Fermi/non-Fermi mixing: The low temperature scaling is described as the Fermi liquid, while the zero temperature infrared fixed point exhibits the non-Fermi liquid signature. We also show that the Wilson ratio is no longer universal for the cases N > k > 1. The deviation from the universal value of the Wilson ratio could be used as an experimental signal of the Fermi/non-Fermi mixing.

Original languageEnglish
Article number084703
JournalJournal of the Physical Society of Japan
Issue number8
Publication statusPublished - 2017 Aug 15

ASJC Scopus subject areas

  • General Physics and Astronomy


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