Nonvanishing Local Moment in Triplet Superconductors

Abstract

The Kondo effect in a $p_x+\mathrm{i}{p}_y$-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 $p_x+\mathrm{i}{p}_y$-wave Cooper pairs. The effect of spin polarization of the triplet superconductor is also discussed.

5 pages, 4 figures, to be published in J. Phys. Soc. Jpn

References in corpus (6)

• Renormalization-group study of Anderson and Kondo impurities in gapless Fermi systems
• Theory of Ferromagnetic Superconductivity
• Phenomenology of the superconducting state in Sr2RuO4
• Persistence of Li Induced Kondo Moments in the Superconducting State of Cuprates
• Magnetic Impurities in d-wave Superconductors
• Numerical Renormalization Group Study of Kondo Effect in Unconventional Superconductors

Cited by in corpus (3)

• The numerical renormalization group method for quantum impurity systems
• Single Impurity Effects in Multiband Superconductors with Different Sign Order Parameters
• Kondo screening in unconventional superconductors: The role of anomalous propagators