Crystalline electric field effect on the resistivity of Ce-based heavy fermion systems

被引：1

作者：

Nishida, Y ^{[1
]}

Tsuruta, A ^{[1
]}

Miyake, K ^{[1
]}

机构：

[1] Osaka Univ, Dept Phys Sci, Grad Sch Engn Sci, Osaka 5608511, Japan

来源：

PHYSICA B-CONDENSED MATTER | 2005年 / 359卷

关键词：

heavy fermion systems; infinite-U degenerate Anderson lattice model; 1/N-expansion; resistivity; crystalline electric field effect;

D O I：

10.1016/j.physb.2005.01.207

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We study the influence of the crystalline electric field (CEF) on the temperature dependence of the resistivity of Ce-based heavy fermions. We investigate the infinite-U degenerate Anderson lattice model including the CEF effect by using 1/N-expansion method a la Nagoya. As a result, we reproduced the T-dependence of the resistivity exhibiting two peaks and its pressure effect, which works to merge the two peaks, as observed in many heavy fermions. (c) 2005 Published by Elsevier B.V.

引用

页码：726 / 728

页数：3

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