Semilog x-ray diffractograms of -series samples sintered at different temperatures for each time.
(a) The virgin plots of -series samples recorded at . The inset shows a full loop for the sample. (b) The plots of ferromagnetic fraction of the -series samples. The inset shows a full loop for the sample, clearly showing the hysteresis.
The magnetization vs temperature data of the sample recorded in a field of .
(a) curves of the sample recorded at 23, 300, 400, 460, 490, 520, 560, and . The inset shows the behavior at , clearly showing the paramagnetic behavior. (b) The behavior of the ferromagnetic fraction extracted from the raw data of (a), revealing the decrease in magnetization.
The high field -vs- plots (i.e., Arrott’s plots) deduced from data of Fig. 4 for 10% cobalt substituted ZnO sample .
The behavior of the FM fraction (in emu per unit mass of the added cobalt) in the 5% Co–and 10% Co–ZnO samples: (a) and (b) .
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