Itinerant-electron Ferromagnetism in W(Nb)O3-d

I. Felner; U. Asaf; M. Weger

doi:10.1016/S0921-4526(01)01102-4

Itinerant-electron Ferromagnetism in W(Nb)O3-d

Materials Science 2009-11-07 v1

Authors: I. Felner , U. Asaf , M. Weger

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Abstract

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

Keywords

itinerant ferromagnetism crystal structure magnetic properties tungsten oxide niobium doping paramagnetism

Cite

@article{arxiv.cond-mat/0111210,
  title  = {Itinerant-electron Ferromagnetism in W(Nb)O3-d},
  author = {I. Felner and U. Asaf and M. Weger},
  journal= {arXiv preprint arXiv:cond-mat/0111210},
  year   = {2009}
}

Comments

accepted to Physica B

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