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ID 19317
本文ファイル
著者
Avila, Marcos A.
抄録(英)
We report on the structural, thermodynamic, and transport properties of high quality single crystals of YbNiSi3 grown by the flux method. This compound crystallizes in the SmNiGe3 layered structure type of the Cmmm space group. The general physical behavior is that of a Kondo lattice showing an antiferromagnetic ground state below TN=5.1 K. This is among the highest ordering temperatures for a Yb-based intermetallic, indicating strong exchange interaction between the Yb ions, which are in or very close to +3 valency based on the effective moment of 4.45μB/f.u. The compound has moderately heavy-electron behavior with a Sommerfeld coefficient of 190 mJ/mol K2. Resistivity is highly anisotropic and for I ⊥ b exhibits the signature logarithmic increase below a local minimum, followed by a sharp decrease in the coherent/magnetically ordered state, resulting in a residual resistivity of 1.5 μΩ cm and a residual resistivity ratio of 40. Fermi-liquid behavior consistent with a ground-state doublet is clearly observed below 1 K.
掲載誌名
Physical Review B - Condensed Matter and Materials Physics
70巻
10号
開始ページ
100409-1
終了ページ
100409-4
出版年月日
2004-09-30
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) 2004 The American Physical Society.
関連情報URL
部局名
先端物質科学研究科