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(a) show the x-ray diffractogram, of pure (b) and (c) show a Scanning Electron Micrograph depicting long rod like grains of pure prepared at and 405 °C, respectively. While both the samples shown in (b) and (c) are XRD phase pure, the grain size is smaller when was higher.
The isotherm measured at 5 and 300 K on pure . The theoretically predicted of is seen at 5 K. The inset shows temperature variation of magnetization, indicating a ferromagnetic of .
A comparison of relevant physical parameters as exhibited by our samples vìs a vìs that are available commercially. The values quoted for the commercial powders are from Refs. 5, 6, and 9.
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