Abstract
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 language | English |
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Pages (from-to) | 1517-1520 |
Number of pages | 4 |
Journal | journal of the physical society of japan |
Volume | 69 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2000 May |
Keywords
- Magnetic property
- Single crystal
- Ternary compound
- UPdSi
ASJC Scopus subject areas
- Physics and Astronomy(all)