Interplay of surface conditions, particle size, stoichiometry, cell parameters, and magnetism in synthetic hematite-like materials

@article{Dang1998InterplayOS,
  title={Interplay of surface conditions, particle size, stoichiometry, cell parameters, and magnetism in synthetic hematite-like materials},
  author={M.-Z. Dang and Denis Rancourt and John E. Dutrizac and Gilles Lamarche and Robert Provencher},
  journal={Hyperfine Interactions},
  year={1998},
  volume={117},
  pages={271-319}
}
We have studied several synthetic hematite-like materials, produced via different reactions using various hydrothermal conditions and various temperatures of annealing in air, by bulk elemental analysis, weight loss measurements, scanning electron microscopy, powder X-ray diffraction, Mössbauer spectroscopy, and SQUID magnetometry. We conclude that hematite-like materials cannot be related to pure stoichiometric hematite via a single stoichiometric or physical parameter and that at least two… 
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