Magnetoresistance in the double perovskite Sr2CrMoO6

被引:96
作者
Arulraj, A
Ramesha, K
Gopalakrishnan, J
Rao, CNR [1 ]
机构
[1] Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, Karnataka, India
[2] Indian Inst Sci, Jawaharlal Nehru Ctr Adv Sci Res, CSIR, Ctr Excellence Chem, Bangalore 560064, Karnataka, India
关键词
magnetoresistance; double perovskite; Sr2CrMoO6;
D O I
10.1006/jssc.2000.8939
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The double perovskite Sr2CrMoO6 with Cr3+-O-Mo5+ pairs is ferrimagnetic (T-N = 450 K), but there is considerable site disorder. The disorder appears to be responsible for the low value of magnetization. At 5 or 6 T, the negative magnetoresistance (MR) is <5% at all temperatures, unlike Sr2FeMoO6 which shows MR upto 27%. Tunneling magnetoresistance behavior of Sr2CrMoO6 is comparable to that of Sr2FeMoO6, but the magnitude is considerably smaller in the former, (C) 2000 Academic Press.
引用
收藏
页码:233 / 237
页数:5
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