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

页码：930 / 931

页数：2