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XRD pattern of with the Miller indices based on the cubic defect spinel structure shown. The vertical solid lines are the computed intensities normalized to the intensity of the (311) line. Relevant parameters based on the fit are listed on the figure.
Temperature dependence of the magnetic susceptibility on a semilog plot is plotted with inset showing size distribution determined from TEM.
M vs H variations at several temperatures are shown, with the lines connecting the data points as guides.
Temperature variation in coercivity and remanence are shown with the lines connecting the data points as guides and the inset low-field regions of hysteresis loops.
Plot of vs T based on the data in Fig. 3. The solid line is the Curie–Weiss fit to the data for . The same fit is shown for the vs T data.
Plot of vs H/T based on the modified Langevin variation for the temperatures shown, with the solid line as the fit for and the inset showing temperature variations of and used in the fit.
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