Crystal structure and magnetic properties of Pr5Si4-xGex compounds

被引：15
作者：
Yang, HF
Rao, GH
Liu, GY
Ouyang, ZW
Liu, WF
Feng, XM
Chu, WG
Liang, JK
机构：
[1] Chinese Acad Sci, Inst Phys, Ctr Condensed Matter Phys, Beijing 100080, Peoples R China
[2] Acad Sinica, Int Ctr Mat Phys, Shenyang 110015, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2003年 / 263卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
rare earth compounds; magnetic properties; crystal structure;
D O I：
10.1016/S0304-8853(02)01548-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The magnetic properties of Pr5Si4-xGex (x = 0.0, 1.0, 2.0, 2.5, 3.0, 3.5, 4.0) were investigated by magnetic measurements. The compounds Pr5Si4-xGex crystallize in the tetragonal Zr5Si4-type structure for x = 0.0 and 1.0, in the monoclinic Gd5Si2Ge2-type structure for x = 2.0 and 2.5; and in the orthorhombic Sm5Ge4-type structure for x = 3.0-4.0. Unlike the heavy rare earth RE5Si4-xGex (RE = Gd, Tb, Dy) system, the Curie temperature of this system exhibits the following features: the Curie temperature of the compound increases with the increasing of the Ge content in the tetragonal phase region, whereas it shows a weak dependence on the Ge content in the monoclinic phase region and decreases in the orthorhombic phase region. All of the compounds in this system may have a canted magnetic structure. (C) 2003 Elsevier Science B.V. All rights reserved.
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页码：146 / 153
页数：8
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