NMR studies of 55Mn in amorphous CexMn100-x alloys

被引：1
|
作者：
Niki, H. [1 ]
Okamura, K. [1 ]
Yogi, M. [1 ]
Amakai, Y. [2 ]
Takano, H. [2 ]
Murayama, S. [2 ]
Obi, Y. [3 ]
机构：
[1] Univ Ryukyus, Fac Sci, Dept Phys, Okinawa 9030213, Japan
[2] Muroran Inst Technol, Muroran, Hokkaido 0508585, Japan
[3] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
来源：
PHYSICA B-CONDENSED MATTER | 2008年 / 403卷 / 5-9期
关键词：
amorphous alloys; Ce-Mn; NMR; Dense Kondo effect;
D O I：
10.1016/j.physb.2007.10.067
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
In order to investigate the heavy-fermion like behavior of amorphous alloy CexMn100-x, the of Mn-55 (I = 5/2) in Ce65Mn35 have been carried out from 4.2 to 270 K using powdered sample. A broadened NMR spectrum containing five NQR lines split due to NQR interaction is observed. Quadrupole coupling constant 3e(2)Qq/2I(2I - 1)h is gradually changed from about 1.8 MHz at 4.2 K to about 1.6 MHz at 270 K. Temperature dependence of the line width is expressed in the Curie-Weiss law with theta p = -10.5 K. The value of Knight shift would be almost constant from 4.2 to 270 K. (c) 2007 Published by Elsevier B.V.
引用
收藏
页码：930 / 931
页数：2
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