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ID 33939
本文ファイル
著者
Tamura, Ryuji
Muro, Yuji
Hiroto, Takanobu
Yaguchi, Hiroshi
Beutier, G.
NDC
物理学
抄録(英)
Electrical resistivity, specific heat, magnetic susceptibility, and magnetization of the crystalline approximant Cd6Sm are investigated in a temperature range 1.8-300 K. Both structural and magnetic transitions are clearly evidenced. A sharp structural phase transition is observed at Tc = 179 K in the electrical resistivity as well as in the specific heat, which is attributed to orientational ordering of the Cd4 tetrahedron located at the center of the icosahedral cluster. In addition, three successive magnetic transitions are found at TM1 = 12.5, TM2 = 10.2, and TM3 = 6.5 K. The anomaly at TM1 is attributed to an antiferromagnetic transition, whereas those at TM2 and TM3 are to ferrimagnetic transitions. The observation of the ferrimagnetic orders indicates that (pseudo) icosahedra made of localized Sm spins have a nonzero net magnetic moment, and the moments of the magnetic clusters form a long-range magnetic order.
掲載誌名
Physical Review B
85巻
1号
開始ページ
014203
出版年月日
2012
出版者
American Physical Society
ISSN
1098-0121
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
(c) 2012 American Physical Society
関連情報URL
部局名
先端物質科学研究科