CRYSTAL AND MAGNETIC STRUCTURES OF A NICKEL-RICH FERRITE OBTAINED BY IONIC EXCHANGE FROM ALPHA-NAFEO2

摘要

The crystallographic structure of a hyperstoichiometric Ni+xFe2-2x/3O4 (x=0.30) spinel-like material, obtained by a soft chemistry synthetic route, has been refined by combining X-ray and neutron powder diffraction data, This compound shows a structure intermediate between the rocksalt and the spinel structure types, The results of the refinement of the magnetic structure are also presented and discussed. (C) 1997 Academic Press. [References: 26]