Transport, thermal and magnetic properties of the new ternary compound U3Pd20Si6: Possibility of a new localized 5f electrons system

Naoyuki Tateiwa, Noriaki Kimura, Hayuyoshi Aoki, Takemi Komatsubara

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14 Citations (Scopus)


We have succeeded in growing the single crystal of a new ternary intermetallic uranium compound U3Pd20Si6. It crystallizes in the Cr23C6-type cubic structure and the uranium ions are located on two different crystallographic sites. Two sucessive magnetic phase transitions are found at 19 K and 2 K in the electrical resistivity, specific heat and magnetic susceptibility measurements. These are attributed to antiferromagnetic and ferromagnetic orderings, respectively. The magnetic susceptibility obeys the Curie-Weiss law above about 50 K with the effective moment 3.30 μB/U and the magnetic entropy at 19 K is about RIn3 per uranium ion. These results indicate that the 5f electrons in U3Pd20Si6 are likely to be localized. We discuss the magnetic properties of U3Pd20Si6 in comparison with those of R3Pd20X6 (R=rare earth: X = Si, Ge).

Original languageEnglish
Pages (from-to)1517-1520
Number of pages4
Journaljournal of the physical society of japan
Issue number5
Publication statusPublished - 2000 May


  • Magnetic property
  • Single crystal
  • Ternary compound
  • UPdSi

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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