Structural and magnetic properties of the ternary compounds Gd2Sc3X4 with X=Si and Ge

被引：1
作者：
Gaudin, E. [1 ]
Chevalier, B. [1 ]
机构：
[1] Univ Bordeaux, CNRS, ICMCB, F-33608 Pessac, France
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2011年 / 509卷 / 20期
关键词：
Ternary compounds; X-ray diffraction; Antiferromagnets; CRYSTALLOGRAPHIC DATA; NANOSCALE ZIPPERS; CRYSTAL; TB; GD; HO; SI; DY;
D O I：
10.1016/j.jallcom.2011.03.023
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
X-ray diffraction on single crystal performed on Gd2Sc3Si4 reveals that this ternary silicide crystallizes as Gd2Sc3Ge4 in the orthorhombic Ce2Sc3Si4-type with a small deficiency in gadolinium leading to the formula Gd1.88(1)Sc3Si4. The structure is formed by [Gd2Sc3Si4] slabs with Si-Si interslab covalent bonds. The investigation of the Gd2Sc3Si4 and Gd2Sc3Ge4 compounds by magnetization, electrical resistivity and specific heat measurements reveals their antiferromagnetic behaviors; Gd2Sc3Si4 having a Neel temperature (48-52 K) higher than that observed (22-23 K) for Gd2Sc3Ge4. (C) 2011 Elsevier B.V. All rights reserved.
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收藏
页码：5952 / 5957
页数：6
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