Structure and physical properties of double perovskite compounds Sr 2FeMO6 (M = Mo, W)

T. S. Chan, R. S. Liu, S. F. Hu, J. G. Lin

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Abstract

The crystal structure and physical properties of the Sr 2FeMO6 (M = Mo, W) double perovskite have been investigated. Analysis of the X-ray powder diffraction pattern based on Rietveld refinement indicates that Sr2FeMoO6 and Sr 2FeWO6 have tetragonal cell (space group: I4/m) and orthorhombic cell (space group: Immm), respectively. The Curie-Weiss fit for Sr2FeWO6 gives Curie constant, C = 6.08 and Weiss temperature, θ = -32.6 K. The small and negative value of θ suggests the existence of both weak ferromagnetic and antiferromagnetic interactions at low temperature. The antiferromagnetic interaction dominates over the weak ferromagnetic one.

Original languageEnglish
Pages (from-to)314-319
Number of pages6
JournalMaterials Chemistry and Physics
Volume93
Issue number2-3
DOIs
Publication statusPublished - 2005 Oct 15

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Keywords

  • Double perovskite
  • Electrical property
  • Magnetic property

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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