Magnetic and structural properties of the CeCo1-xCuxAl4 (x=0, 0.05, 0.1) compounds

被引：0

作者：

Tolinski, T. ^{[1
]}

Hoser, A. ^{[2
]}

Stuesser, N. ^{[2
]}

Kowalczyk, A. ^{[1
]}

Kaczorowski, D. ^{[3
]}

机构：

[1] PAS, Inst Mol Phys, PL-60179 Poznan, Poland

[2] Helmholtz Zentrum, D-14109 Berlin, Germany

[3] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland

来源：

JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS | 2012年 / 14卷 / 1-2期

关键词：

Rare earth -intemietallic compounds; Magnetism; Neutron diffraction; CECOAL4; SINGLE-CRYSTAL; NEUTRON-DIFFRACTION; ANTIFERROMAGNET; PRCOAL4;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the neutron diffraction, magnetic susceptibility, specific heat and electrical resistivity studies of the antiferromagnetic CeCo1-xCuxAl4 (x = 0, 0.05, 0.1) compounds. The substitution of the Co atoms by Cu aims to highlight the influence of the impurity phases on the structure stability and on the magnetic properties. For x = 0.1, 0.05 and 0 the magnetic moments of 0.76, 0.74 and 0.69 mu(B)/Ce have been obtained, respectively. The phase transitions observed in the specific heat measurements suggest a presence of a small contribution of the CeCuAl3 and CeAl2 phases. The addition of Cu develops a small amount of the former phase and decreases strongly the amount of any other impurities stabilizing, therefore, the main CeCoAl4 phase. The neutron diffraction below the Neel temperature of 13.5 K confirms most of the previous studies on the magnetic structure of CeCoAl4.

引用

页码：90 / 94

页数：5

共 12 条

[1] CECOAL4 - AN INCOMMENSURATE ANTIFERROMAGNET [J].