Mechanism for the non-Fermi-liquid behavior in CeCu6-xAux

被引：168

作者：

Rosch, A

Schroder, A

Stockert, O

vonLohneysen, H

机构：

[1] UNIV KARLSRUHE, INST PHYS, D-76128 KARLSRUHE, GERMANY

[2] RISO NATL LAB, DK-4000 ROSKILDE, DENMARK

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.79.159

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose an explanation for the recently observed non-Fermi-liquid behavior of metallic alloys CeCu6-xAux: Near x = 0.1, the specific heat C is proportional to T ln(T-0/T), and the resistivity increases linearly with temperature T over a wide range of T. These features follow from a model in which three-dimensional conduction electrons are coupled to two-dimensional critical ferromagnetic fluctuations near the quantum critical point x(c) = 0.1. This picture is motivated by the neutron scattering data in the ordered phase (x = 0.2) and is consistent with the observed phase diagram.

引用

页码：159 / 162

页数：4

共 25 条

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