Low-temperature nuclear and magnetic structures of La2O2Se2.Fe2O from X-ray and neutron diffraction measurements

David G. Free; John S. O. Evans

doi:10.1103/PhysRevB.81.214433

Low-temperature nuclear and magnetic structures of La2O2Se2.Fe2O from X-ray and neutron diffraction measurements

Materials Science 2010-06-28 v2 Other Condensed Matter

Authors: David G. Free , John S. O. Evans

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Abstract

This paper describes the low temperature nuclear and magnetic structures of La2O2Se2.Fe2O by analysis of X-ray and neutron diffraction data. The material has been demonstrated to order antiferromagnetically at low temperatures, with TN \approx 90 K a propagation vector of k = (1/2 0 1/2), resulting in a spin arrangement similar to that in FeTe, despite there being no apparent lowering in symmetry of the nuclear structure.

Keywords

low-temperature nuclear structure magnetic structure antiferromagnetic ordering X-ray diffraction neutron diffraction La2O2Se2·Fe2O propagation vector

Cite

@article{arxiv.1005.4600,
  title  = {Low-temperature nuclear and magnetic structures of La2O2Se2.Fe2O from X-ray and neutron diffraction measurements},
  author = {David G. Free and John S. O. Evans},
  journal= {arXiv preprint arXiv:1005.4600},
  year   = {2010}
}

Comments

19 pages (including figures)

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