Nonvanishing Local Moment in Triplet Superconductors
キーワード:
Kondo effect,
unconventional superconductivity,
triplet Cooper pair,
numerical renormalization group
2002 年 71 巻 3 号 p. 943-947
詳細
2002 年 71 巻 3 号 p. 943-947
The Kondo effect in a px + i py-wave superconductor is studied by applying the Wilson's numerical renormalization group method. In this type of superconductor with a full energy gap like a s-wave one, the ground state is always a spin doublet, while a local spin is shrunk by the Kondo effect. The calculated magnetic susceptibility indicates that the spin of the ground state is generated by the orbital effect of the px + i py-wave Cooper pairs. The effect of spin polarization of the triplet superconductor is also discussed.
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