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Room temperature XRD patterns for different Cu-doped oxides. The peaks marked as 1 are for bulk CuO and unmarked peaks are due to the corresponding host oxides.
EMR derivative spectra for several Cu-doped oxides taken at and . Inset shows the narrow-range field scanned spectrum for at .
Magnetic susceptibility vs temperature data at for different Cu-doped oxides. Solid lines are fits to the Curie-Weiss law for each sample.
Magnetization vs magnetic field data at . The solid lines are fit to Brillouin function for with magnitudes of given in Table I. The inset shows the hysteresis loop data for the low-field region for some oxides. Noticeable hysteresis is observed only for .
vs data of Fig. 3 are replotted to highlight the behavior at the higher temperatures.
Experimental results for the 10% Cu-doped oxides ( and are in units of and , respectively).
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