Itinerant-electron ferromagnetism in W(Nb)O3-δ

I. Felner*, U. Asaf, M. Weger, S. Reich, G. Leitus

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The crystal structure and the magnetic properties of the W1-xNbxO3-δ, (x<0.03) system have been investigated. In contrast to the orthorhombic diamagnetic WO3, the material with x=0.01 is paramagnetic down to 5K. Introducing 2.5 at% of Nb into WO3 leads to a tetragonal structure and to a weak itinerant ferromagnetic ordering below TC=225K. The saturation magnetic moment at 5K is 1.07×10-3μ(B), whereas the paramagnetic effective moment is 0.06μB/mol. This high ratio indicates itinerant ferromagnetism in W0.975Nb0.025O3-δ.

Original languageEnglish
Pages (from-to)191-194
Number of pages4
JournalPhysica B: Condensed Matter
Volume311
Issue number3-4
DOIs
StatePublished - Feb 2002

Keywords

  • Crystal structure
  • Itinerant magnetism

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