Itinerant 5f electrons and the Fermi surface properties in neptunium compounds

D. Aoki, H. Yamagami, Y. Homma, H. Sakai, S. Ikeda, Y. Shiokawa, E. Yamamoto, A. Nakamura, Y. Haga, R. Settai, Y. Onuki

Research output: Contribution to journalArticlepeer-review


We grew high-quality single crystals of NpGe3, NpIn3, NpCoGa5, NpRhGa5 and NpFe4 P12 by the flux method, and measured the de Haas-van Alphen (dHvA) effect, magnetic susceptibility and resistivity. The results of dHvA experiments in NpGe3, NpCoGa5 and NpRhGa5 were well explained by the energy band calculation based on the 5f-itinerant model, while the topology of Fermi surfaces in NpIn3 is similar to those of LaIn3, implying the 5f-localized nature of NpIn3. The skutterudite compound NpFe4 P12 is a low carrier system with the 5 f3 configuration.

Original languageEnglish
Pages (from-to)1678-1683
Number of pages6
JournalJournal of Magnetism and Magnetic Materials
Issue number2 SUPPL. PART 2
Publication statusPublished - 2007 Mar


  • 5f electron
  • Fermi surface
  • Transuranium compound
  • dHvA effect

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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