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ID 19306
本文ファイル
著者
Hane, Shingo
Mitamura, Hiroyuki
Goto, Tsuneaki
抄録(英)
A pressure-induced magnetic-nonmagnetic transition in an antiferromagnet Ce2Rh3Ge5 has been investigated by the measurements of the resistivity ρ, magnetic susceptibility χ, and specific heat on a single crystal down to 0.3 K. With increasing pressure, the Ne?el temperature TN is suppressed and disappears at Pc=0.45 GPa. For P>Pc, the deviation from the Fermi-liquid behavior is observed in both ρ(T) and χ(T): ρ(T)=ρ0+ATn (n≅1.45) and χ(T)=χ0-DTm (m≅0.27). Even for P>3Pc both n and m hardly change, i.e., no recovery of the Fermi-liquid state. This fact is in contrast with the recovery in many of Ce-based antiferromagnets at P>2Pc. The magnetization hardly decreases with pressure up to 1.2 GPa, suggesting that the cerium local moments still remain even far from the quantum critical point. Moreover, the Kondo temperature TK increases weakly from 10 K at P=0 to 13 K at P=0.57 GPa. These findings indicate the important role of short-range magnetic correlations in the revised Doniach phase diagram.
掲載誌名
Physical Review B - Condensed Matter and Materials Physics
64巻
14号
開始ページ
144412-1
終了ページ
144412-7
出版年月日
2001-09-18
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
Copyright (c) 2001 The American Physical Society.
関連情報URL
部局名
先端物質科学研究科