Magnetization Study of the Valence Fluctuation Compound Sm3Te4 at Very Low Temperatures

Takashi Tayama, Kenichi Tenya, Hiroshi Amitsuka, Toshiro Sakakibara, Akira Ochiai, Takashi Suzuki

Research output: Contribution to journalArticle

8 Citations (Scopus)

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 languageEnglish
Pages (from-to)3467-3470
Number of pages4
Journaljournal of the physical society of japan
Volume65
Issue number11
DOIs
Publication statusPublished - 1996 Jan 1
Externally publishedYes

Keywords

  • Magnetization measurement
  • SmTe
  • Spin-glass ordering
  • Valence fluctuation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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