Magnetic and thermal properties of cubic SmCu4X compounds (x = Ag, Au and Pd)

Shuai Zhang*, Takashi Tayama, Toshio Mizushima, Tomohiko Kuwai, Yosikazu Isikawa

*この論文の責任著者

研究成果: ジャーナルへの寄稿学術論文査読

1 被引用数 (Scopus)

抄録

Measurements of magnetization M(H), susceptibility χ(T), electrical resistivity ρ(T), and specific heat C(T) are performed on a new system SmCu4X with X = Ag, Au and Pd. For all the three compounds, χ(T) in paramagnetic state does not exhibit Curie-Weiss behavior. Whereas χ(T) for the compounds with X = Ag and Au shows an antiferromagnetic ordering at 5.5 and 3.6 K, respectively, SmCu4Pd behaves as a ferromagnet with TC = 31 K. Sm ions appear to be near trivalent in the three compounds. The magnetic field dependence of C(T) around the transition temperature is analyzed qualitatively by molecular field theory for the three compounds. For SmCu4Au, C(T) is insensitive to magnetic field and a large value of C/T, 500 mJ/mol K2, remains at the zero-temperature limit in external fields of up to 8 T.

本文言語英語
論文番号SA076
ジャーナルJournal of the Physical Society of Japan
80
SUPPL. A
DOI
出版ステータス出版済み - 2011/07

ASJC Scopus 主題領域

  • 物理学および天文学一般

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