Structures and Magnetic Properties of Europium-Transition Metal-Gallium Ternary Intermetallic Compounds with 1:3 Type

被引：0
|
作者：
He Qiang [1 ]
Guo Yong-Quan [1 ]
机构：
[1] North China Elect Power Univ, Sch Energy Power & Mech Engn, Beijing 102206, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2015年 / 32卷 / 01期
基金：
中国国家自然科学基金;
关键词：
CRYSTAL-STRUCTURE;
D O I：
10.1088/0256-307X/32/1/017504
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The crystal structures and magnetic properties of novel EuT.. Ga3-.. ( T= Pd, Ir, Rh) intermetallic compounds are investigated by using powder x- ray diffraction and magnetic measurements. EuT.. Ga3-.. crystallizes in orthorhombic structure with space group of........ and.. = 4. There are four kinds of nonequivalent 4c crystal positions in EuT.. Ga3-.. unit cell, which are occupied by 4Eu, 4GaI, 4( GaII, T) and 4GaIII, respectively. EuT.. Ga3-.. exhibits the complex magnetic states in low- temperature regime, with the three-, two- and one- antiferromagnetic transitions occurring for T= Ir, T= Rh and T= Pd, respectively. It might be due to the Kondo effect: a localized antiferromagnetic interaction of the isolated impurity spins with the surrounding conduction electrons at low- temperature regime.
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页数：4
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