Magnetoresistivity properties of some ternary stannides based on cerium and nickel

被引：11

作者：

Chevalier, B

Soldevilla, JG

Espeso, JI

Fernández, JR

Sal, JCG

Etourneau, J

机构：

[1] Inst Chim Mat Condensee Bordeaux, F-33608 Pessac, France

[2] Univ Cantabria, Fac Ciencias, E-39005 Santander, Spain

来源：

PHYSICA B-CONDENSED MATTER | 1999年 / 259-61卷

关键词：

cerium stannide; magnetoresistivity; Kondo effect;

D O I：

10.1016/S0921-4526(98)00947-8

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The stannides CeNi(5)Sn (intermediate valence), CeNi(4)Sn(2) (antiferromagnet), CeNiSn(2) (antiferromagnet then ferromagnet) and Ce(2)Ni(2)Sn (Kondo antiferromagnet) were investigated by magnetoresistivity (MR) measurements. Various behaviours were detected: (i) MR is always positive-and weak (congruent to 4.8% at 2 K and 9 T) for CeNi(5)Sn as expected for a non-magnetic metal; (ii) for CeNi(4)Sn(2) the positive MR increases strongly (congruent to 35% at 2 K) below T(N) = 11 K; (iii) a large negative MR is observed at 9 T in the paramagnetic state of Ce(2)Ni(2)Sn (congruent to - 18% at 6 K) and CeNiSn(2) (2 - 7% at 5 K) suggesting the influence of the Kondo effect. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：44 / 45

页数：2