Numerical renormalization group study of the Kondo effect in superconductors

H. Shiba, K. Satori, O. Sakai, Y. Shimizu

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


The numerical renormalization group method is applied to study a magnetic impurity in a superconductor. The ground state and the first excited state, which are either a doublet (S = 1 2) or a singlet (S = 0), are traced with the renormalization step. The position and the spectral weight of the localized excited state within the energy gap are determined as a function of TK/Δ (TK Kondo temperature, Δ = superconducting energy gap). The present theory gives a reliable description for the whole region of TK/Δ.

Original languageEnglish
Pages (from-to)239-241
Number of pages3
JournalPhysica B: Physics of Condensed Matter
Issue numberC
Publication statusPublished - 1993 May 2

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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