Heavy-fermion quantum critical point behavior in CeNi9Ge4

被引：18

作者：

Michor, H

Bauer, E

Dusek, C

Hilscher, G

Rogl, P

Chevalier, B

Etourneau, J

Giester, G

Killer, U

Scheidt, EW

机构：

[1] Vienna Tech Univ, Inst Festkorperphys, A-1040 Vienna, Austria

[2] Univ Vienna, Inst Phys Chem, A-1090 Vienna, Austria

[3] Univ Bordeaux 1, F-33608 Pessac, France

[4] Univ Vienna, Inst Mineral & Kristallog, A-1090 Vienna, Austria

[5] Univ Augsburg, Lehrstuhl Chem Phys & Mat Wissensch, D-86135 Augsburg, Germany

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷

关键词：

ternary compounds; quantum critical point; specific heat;

D O I：

10.1016/j.jmmm.2003.12.675

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on non-Fermi liquid features observed for CeNi9Ge4-a novel stoichiometric compound, which is close to the heavy-fermion quantum critical point. The specific heat measured down to 80 mK, reveals an almost logarithmic divergence of the low-temperature contribution yielding an extraordinarily large Sommerfeld value exceeding 6 J/mol K-2. The application of external magnetic fields recovers a conventional Fermi-liquid state. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：227 / 228

页数：2

共 6 条

[1]

Bodak O. I., 1979, Soviet Physics - Crystallography, V24, P732

[2] Crystal structure and Kondo lattice behavior of CeNi9Si4 -: art. no. 224428 [J].