Exotic heavy-fermion state in the filled skutterudite PrFe4P12 uncovered by the de Haas-van Alphen effect

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

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142 Citations (Scopus)


We report the de Haas-van Alphen (dHvA) experiment on the filled skutterudite PrFe4P12 exhibiting apparent Kondo-like behaviors in the transport and thermal properties. We have found enormously enhanced cyclotron effective mass mc* = 81 m0 in the high field phase, which indicates that PrFe4P12 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 mc* = 10 m0 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
Article number134411
Pages (from-to)1344111-1344115
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number13
Publication statusPublished - Oct 1 2002
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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