Kondo lattice - fluctuating valence transition in Ce(Cu1-xNix)4Al compounds

被引：2
|
作者：
Tolinski, T. [1 ]
Kostrzewa, D. [2 ]
Synoradzki, K. [1 ]
Szlaferek, A. [1 ]
Wencka, M. [1 ,3 ]
Dolinsek, J. [3 ]
机构：
[1] Polish Acad Sci, Inst Mol Phys, PL-60179 Poznan, Poland
[2] Poznan Univ Tech, Inst Phys, Poznan, Poland
[3] Univ Ljubljana, Jozef Stefan Inst, SI-1000 Ljubljana, Slovenia
来源：
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2011年 / 248卷 / 09期
关键词：
fluctuating valences; heavy fermions; intermetallics; Kondo lattices; CE; CECU4AL; SYSTEMS; ALLOYS; SUSCEPTIBILITY; METALS; MODEL; HEAT;
D O I：
10.1002/pssb.201046341
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The Ce(Cu1-xNix)(4)Al series of compounds has been studied for 0<x<1. The physical properties have been determined by Xray diffraction, magnetometric, specific heat and electrical resistivity measurements. It is observed that the monotonic change of the unit cell volume is accompanied by the change of the magnetic and thermodynamic parameters. The transition from the Kondo lattice to the fluctuating valence (FV) state is observed without the dilution of Ce but by the increase of x, which is accompanied by the decrease of the electronic specific heat coefficient, increase of the splitting of the crystal field levels and damping of the resistivity maximum. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：2186 / 2191
页数：6
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