Magnetic Phase Diagram for the Spinel Ferrite Series MgFe2-xCrxO4 and Mg1-xZnxFel.5Cr0.5O4 as Determined by Mössbauer Spectroscopy P. M.A. de Bakker, R. E. Vandenberghe et E. de GraveJ. Phys. IV France, 07 C1 (1997) C1-267-C1-268DOI: https://doi.org/10.1051/jp4:19971104