HEAVY-ELECTRON ANTIFERROMAGNETISM IN CEPT2SN2

被引：40

作者：

BEYERMANN, WP ^{[1
]}

HUNDLEY, MF ^{[1
]}

CANFIELD, PC ^{[1
]}

THOMPSON, JD ^{[1
]}

FISK, Z ^{[1
]}

SMITH, JL ^{[1
]}

SELSANE, M ^{[1
]}

GODART, C ^{[1
]}

LATROCHE, M ^{[1
]}

机构：

[1] CNRS,CHIM MET TERRES RARES LAB,F-92190 MEUDON,FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.66.3289

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured specific heat, magnetic susceptibility, and resistivity on the cerium-intermetallic compound CePt2Sn2. The heat capacity shows a strong increase below a few kelvin, typical of a large many-body enhancement of the density of states or equivalently of the effective electronic mass. Just before the material orders antiferromagnetically at T(N) = 0.88 K, the linear temperature coefficient of the specific heat-gamma is approximately 3.5 J/mole K2, making this material one of the heaviest electron systems known. The low Neel temperature and huge specific heat imply similarly low energy scales for competing RKKY and Kondo-like interactions.

引用

页码：3289 / 3292

页数：4

共 21 条

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