Low-temperature nuclear and magnetic structures ofLa2O2Fe2OSe2from x-ray and neutron diffraction measurements

2010/05/31 by David G. Free, John S. O. Evans · 2 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Iron-based superconductors research #Rare-earth and actinide compounds #cond-mat.mtrl-sci #cond-mat.other

paper · pdf · doi:10.1103/physrevb.81.214433

published as Phys. Rev. B, 81, 214433 (2010) · 19 pages (including figures)

arxiv created 2010/06/09 · openalex publication_date 2010/06/23 · arxiv updated 2010/06/28 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

This paper describes the low-temperature nuclear and magnetic structures of La₂O₂Fe₂OSe₂ by analysis of x-ray and neutron diffraction data. The material has been demonstrated to order antiferromagnetically at low temperatures, with T_N=\ensuremath∼90 K a propagation vector of \mathbitk=((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.

Citations

• A profile refinement method for nuclear and magnetic structures
• EXPGUI, a graphical user interface forGSAS
• Doping evolution of antiferromagnetic order and structural distortion inLaFeAsO1−xFx

Cited by

• Nematic Fluctuations in Iron-Oxychalcogenide Mott Insulators
• Quantum criticality in the iron pnictides and chalcogenides
• Electron Correlation and Spin Dynamics in Iron Pnictides and Chalcogenides

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