TY - JOUR
T1 - Fermi/non-Fermi mixing in SU(N) Kondo effect
AU - Kimura, Taro
AU - Ozaki, Sho
N1 - Funding Information:
We would like to thank A. Furusaki, S. C. Furuya, and R. Yoshii for useful discussion. The work of TK and SO was supported in part by MEXT-Supported Program for the Strategic Research Foundation at Private Universities “Topological Science” (No. S1511006). TK was also supported in part by Keio Gijuku Academic Development Funds, JSPS Grant-in-Aid for Scientific Research (No. JP17K18090), and JSPS Grant-in-Aid for Scientific Research on Innovative Areas “Topological Materials Science” (No. JP15H05855) and “Discrete Geometric Analysis for Materials Design” (No. JP17H06462).
Publisher Copyright:
©2017 The Physical Society of Japan
PY - 2017/8/15
Y1 - 2017/8/15
N2 - 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.
AB - 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.
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U2 - 10.7566/JPSJ.86.084703
DO - 10.7566/JPSJ.86.084703
M3 - Article
AN - SCOPUS:85026327366
SN - 0031-9015
VL - 86
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 8
M1 - 084703
ER -