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

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)265-270
Number of pages6
JournalSolid State Communications
Volume133
Issue number4
DOIs
Publication statusPublished - 2005 Jan 1

Keywords

  • A. Magnetically ordered materials
  • D. Magnetoresistance
  • E. X-ray spectroscopies

ASJC Scopus subject areas

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

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