Magnetic and magneto-transport properties of RuSr2GdCu2O8

被引：9
作者：
Matsubara, I
Kida, N
Funahashi, R
机构：
[1] Osaka Natl Res Inst, Ikeda, Osaka 5638577, Japan
[2] Osaka Electrocommun Univ, Neyagawa, Osaka 5278530, Japan
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2001年 / 13卷 / 24期
关键词：
D O I：
10.1088/0953-8984/13/24/309
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We have investigated the magnetic and the magneto-transport properties of non-superconducting RuSr2GdCu2O8 (Ru-1212). The Ru sublattice shows a magnetic ordering at T-c = 148 K. An antiferromagfietic ordering of the Gd sublattice is clearly observed at 2.8 K. The rho -T behaviour is semiconducting with a kink in the vicinity of the T-c due to the reduction of spin scattering. Negative magnetoresistance due to a suppression of spin-flip scattering is relatively large, similar to4% at H = 4 T, even in the highly two-dimensional system.
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收藏
页码：5645 / 5652
页数：8
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