Structural, electrical and magnetic characterization of the double perovskites Sr2CrMO6 (M = Mo, W):: B′ 4d-5d system

被引：28

作者：

Chan, TS

Liu, RS

Guo, GY

Hu, SF

Lin, JG

Lee, JF

Jang, LY

Chang, CR

Huang, CY

机构：

[1] Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan

[2] Natl Taiwan Univ, Ctr Nanostorage Res, Taipei 106, Taiwan

[3] Natl Taiwan Univ, Dept Phys, Taipei 106, Taiwan

[4] Natl Nano Device Labs, Hsinchu 300, Taiwan

[5] Natl Taiwan Univ, Ctr Condensed Matter Sci, Taipei 106, Taiwan

[6] Natl Synchrotron Radiat Res Ctr, Hsinchu 300, Taiwan

[7] Chinese Culture Univ, Inst Mat Mfg, Taipei 111, Taiwan

来源：

SOLID STATE COMMUNICATIONS | 2004年 / 131卷 / 08期

关键词：

magnetically ordered materials; magnetoresistance; X-ray spectroscopies;

D O I：

10.1016/j.ssc.2004.05.050

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report on the preparation and characterization of the variation of B'-site transition metal in Sr2CrMO6 (M = Mo, W) with double perovskites structure. The magnetic susceptibility shows that Sr2CrMoO6 and Sr2CrWO6 are antiferromagnets with T-N = 40 and 30 K at H = 1 T, respectively. In addition, a large magnetoresistance ratio (MR) of similar to38% (H = 3 T) at 5 K was observed in the Sr2CrWO6 compound. However, the Sr2CrMoO6 compound does not show any significant MR even at high fields (MR similar to 4%; H = 3 T and 5 K). The measured 0 K-edge X-ray absorption is in agreement with the calculated 0 p-density of states for both compounds. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：531 / 535

页数：5

共 15 条

[1] Magnetoresistance in the double perovskite Sr2CrMoO6 [J].