5f-itinerant Antiferromagnetism and Fermi surface property in UGa3, UFeGa5, UNiGa5 and UPtGa5

Yoshichika Ōnuki, Yoshihumi Tokiwa, Shugo Ikeda, Dai Aoki, Yoshihiko Inada, Rikio Settai, Takahiro Maehira, Etsuji Yamamoto, Yoshinori Haga

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We measured the magnetic susceptibilityand de Haas-van Alphen (dHvA) oscillation in UGa3 and UTGa5 (T: Fe, Ni andPt). The susceptibility in UGa3 and UTGa5 is almost temperature-independent. It does not follow the Curie-Weiss law in the paramagnetic region, being dominated by a Pauli-like contribution, although UGa3 and UTGa5 (T: Ni and Pt) order antiferro-magnetically. The electronic state in UTGa5 is unique, indicating quasi-two dimensionality. Nearly cylindrical Fermi surfaces are formed by itinerant-5f electrons.

Original languageEnglish
Pages (from-to)114-117
Number of pages4
Journaljournal of nuclear science and technology
Publication statusPublished - 2002 Jan 1
Externally publishedYes


  • Antiferromagnetism
  • Dhva
  • Fermi surface
  • UFeGa
  • UGa
  • UNiGa
  • UPtGa

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering


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