Magnetic properties of new filled skutterudite compounds GdFe4As12 and TbFe4As12

被引：9
|
作者：
Sekine, C. [1 ]
Ito, K. [1 ]
Matsui, K. [1 ]
Yagi, T. [2 ]
机构：
[1] Muroran Inst Technol, Grad Sch Engn, 27-1 Mizumoto Cho, Muroran, Hokkaido 0508585, Japan
[2] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan
来源：
INTERNATIONAL CONFERENCE ON STRONGLY CORRELATED ELECTRON SYSTEMS (SCES 2010) | 2011年 / 273卷
基金：
日本学术振兴会;
关键词：
HIGH-PRESSURE SYNTHESIS; EU;
D O I：
10.1088/1742-6596/273/1/012120
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
New As-based filled skutterudite compounds GdFe4As12 and TbFe4As12 have been synthesized under high pressure. The samples have a cubic structure with lattice parameters a=8.3024 angstrom, and 8.2961 angstrom, respectively. Both compounds show metallic behavior and a pronounced kink at low temperature in the temperature dependence of resistivity. Magnetic measurements revel that GdFe4As12 and TbFe4As12 exhibit a ferromagnetic-like phase transition at 56K and 38K, respectively. The unexpectedly high transition temperatures could be related to the interaction of Gd (or Tb) 4f moments with Fe 3d moments.
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页数：5
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