Magnetic properties of heavy fermion system Ce1-xGdxCoSi3

被引：3

作者：

Hong, J. B. ^{[1
]}

Oh, H. J. ^{[1
,2
]}

Kwon, Y. S. ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea

[2] Masan Coll, Dept Ophthalm Opt, Masan 630729, South Korea

来源：

JOURNAL OF APPLIED PHYSICS | 2009年 / 105卷 / 07期

基金：

新加坡国家研究基金会;

关键词：

LIQUID BEHAVIOR; SINGLE-CRYSTALS; METALS;

D O I：

10.1063/1.3076604

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have investigated magnetic properties of the heavy fermion system Ce1-xGdxCoSi3 (0 <= x <= 1) via specific heat and electrical resistivity measurements. The specific heat shows antiferromagnetism at 9 K for GdCoSi3 (x = 1.0). With increasing Ce concentration, T-N linearly decreases and is suppressed at x = 0.1. An anomalous hump in specific heat was found below the ordering temperature for x >= 0.4. For x = 0.1, non-Fermi-liquid behavior was found in electrical resistivity and -ln T divergence in C/T below 3 K. Our results indicate that x = 0.1 is a quantum critical point. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3076604]

引用

页数：3

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