Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10653710 | Solid State Communications | 2005 | 6 Pages |
Abstract
The crystal structure, magnetic and magnetotransport properties of the variation of Bâ²-site transition metal in Sr2FeMO6 (M=Mo, W) with double perovskites structure have been investigated systematically. Measurements of magnetization vs. temperature at H=5Â T show that Sr2FeMoO6 is a ferromagnet and Sr2FeWO6 is an antiferromagnet with TNâ¼35Â K. Additionally, the large magnetoresistance ratio (MR) of â¼22% (H=3Â T) at room temperature (RT) was observed in the Sr2FeWO6 compound. However, the Sr2FeMoO6 compound did not show any significant MR even at high fields and RT (MRâ¼1%; H=3Â T and 300Â K). The implications of these findings are supported by band structure calculations to explain the interaction between the 4d(Mo) and 5d(W) orbitals of transition metal ions and oxygen ions.
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Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
T.S. Chan, R.S. Liu, G.Y. Guo, S.F. Hu, J.G. Lin, J.M. Chen, C.-R. Chang,