Exotic heavy-fermion state in the filled skutterudite (formula presented) uncovered by the de Haas-van Alphen effect

H. Sugawara, T. D. Matsuda, K. Abe, Y. Aoki, H. Sato, S. Nojiri, Yoshihiko Inada, R. Settai, Y. Ōnuki

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We report the de Haas-van Alphen (dHvA) experiment on the filled skutterudite (formula presented) exhibiting apparent Kondo-like behaviors in the transport and thermal properties. We have found enormously enhanced cyclotron effective mass (formula presented) in the high field phase, which indicates that (formula presented) is the first Pr compound in which really heavy mass has been unambiguously confirmed. Also in the low field nonmagnetic ordered phase (LOP), we observed the dHvA branch with (formula presented) that is quite heavy taking into account its small Fermi surface volume (0.15% of the Brillouin zone size). The insensitivity of mass in LOP against the magnetic field suggests that the quadrupolar interaction plays a main role both in the mass renormalization and the LOP formation.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume66
Issue number13
DOIs
Publication statusPublished - Jan 1 2002
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Exotic heavy-fermion state in the filled skutterudite (formula presented) uncovered by the de Haas-van Alphen effect'. Together they form a unique fingerprint.

  • Cite this