A MODEL FOR THE HEAVY-FERMION BEHAVIOR OF YMN2 - INFLUENCE OF FRUSTRATION ON THE SPIN FLUCTUATION SPECTRUM

被引：24

作者：

PINETTES, C ^{[1
]}

LACROIX, C ^{[1
]}

机构：

[1] CNRS,LAB MAGNET LOUIS NEEL,F-38042 GRENOBLE 9,FRANCE

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1994年 / 6卷 / 46期

关键词：

D O I：

10.1088/0953-8984/6/46/025

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We show that the magnetic properties of frustrated itinerant systems can be described by a peculiar shape of the q-dependent susceptibility. We justify the fact that the spin fluctuation spectrum is especially broad in this case. This spectrum is used to calculate the spin fluctuation contribution to the specific heat; we show that this contribution can be very large close to a magnetic-non-magnetic instability. Comparison with recent experimental results on YMn2 is made and the similarities of this compound with the 4f heavy-fermion compounds are emphazied.

引用

页码：10093 / 10104

页数：12

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