Kondo effect in CeRhBi and superconductivity in LaRhBi

S. Yoshii, D. Tazawa, M. Kasaya

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9 Citations (Scopus)

Abstract

We studied the physical properties of isostructural CeRhX (X = Bi, Sb, As) series systematically. The experimental results show that CeRhBi is a metallic dense Kondo compound with large electronic specific heat coefficient y value (CIT ∼ 500 mJ/mol K2 at 2 K). Using the impurity Kondo model with J= 1/2 for the magnetic contribution to the specific heat, the Kondo temperature TK of CeRhBi is estimated to be about 9 K. LaRhBi, a reference compound for CeRhBi, is a superconductor with transition temperature of about 2.4 K. The ratio ΔC/γTC where ΔC is the specific heat jump at TC is calculated to be about 1.25, which is compared to the BCS value of 1.43.

Original languageEnglish
Pages (from-to)380-382
Number of pages3
JournalPhysica B: Condensed Matter
Volume230-232
DOIs
Publication statusPublished - 1997 Feb

Keywords

  • CeRhBi
  • Kondo effect
  • LaRhBi
  • Superconductivity

ASJC Scopus subject areas

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

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