Effects of B′-site transition metal on the properties of double perovskites Sr2FeMO6 (M = Mo, W): B′ 4d-5d system

T. S. Chan, R. S. Liu, G. Y. Guo, S. F. Hu, J. G. Lin, J. M. Chen, C. R. Chang

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28 引文 斯高帕斯(Scopus)

摘要

The crystal structure, magnetic and magnetotransport properties of the variation of B′-site transition metal in S2FeMO6 (M=Mo, W) with double perovskites structure have been investigated systematically. Measurements of magnetization vs. temperature at H=5T show that Sr2FeMoO6 is a ferromagnet and Sr2FeWO 6 is an antiferromagnet with TN∼35 K. Additionally, the large magnetoresistance ratio (MR) of ∼22% (H=3 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 (MR∼ 1%; H=3 T and 300 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.

原文英語
頁(從 - 到)265-270
頁數6
期刊Solid State Communications
133
發行號4
DOIs
出版狀態已發佈 - 2005 一月

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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