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

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Title
Fermi/non-Fermi mixing in SU(N) Kondo effect
Author(s)
Taro Kimura; Sho Ozaki
Publication Date
2017-08
Journal
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, v.86, no.8, pp.084703 -
Publisher
PHYSICAL SOC JAPAN
Abstract
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. © 2017 The Physical Society of Japa
URI
https://pr.ibs.re.kr/handle/8788114/4115
ISSN
0031-9015
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > Journal Papers (저널논문)
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