Abstract
The ac susceptibility Χac and the dc magnetization M(H, T) of single crystals of Sm3Te4 have been measured at temperatures as low as 70 mK. A cusp is found in Χac at 1.3 K which is slightly lower than the temperature at which a broad peak of the specific heat was previously observed. Distinct irreversibility is observed in M(H, T) below ∼ 1.3 K. The results indicate that the Sm3+ moment undergoes a spin glass transition at Tg ∼ 1.3 K. It is likely that the two valence states of Sm2+(J = 0) and Sm2+(J = 5/2) are randomly frozen at low temperatures in the bcc lattice to effectively form a randomly diluted antiferromagnet.
Original language | English |
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Pages (from-to) | 3467-3470 |
Number of pages | 4 |
Journal | journal of the physical society of japan |
Volume | 65 |
Issue number | 11 |
DOIs | |
Publication status | Published - 1996 Jan 1 |
Externally published | Yes |
Keywords
- Magnetization measurement
- SmTe
- Spin-glass ordering
- Valence fluctuation
ASJC Scopus subject areas
- Physics and Astronomy(all)