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XRD patterns with Rietveld refinement for pristine and . The observed intensity are shown by open circle and the solid line is the calculated intensity; the vertical lines are position of Bragg reflections and the lower curve is difference between observed and calculated intensities.
(a) XPS spectra for pristine , hydrogenated , air-heated (b) Gaussian fittings to peak for (c) Gaussian fittings to peak for .
(a) spectra for pristine , hydrogenated and the air-heated (b) XPS spectra for with Gaussian fits. (c) Bulk oxygen peaks for pristine , hydrogenated , and the air-heated (d) magnified view of the strongest Bragg reflected (101) peak for pristine and hydrogenated .
M-H curves for (a) pristine , and (b) hydrogenated (inset shows M-T curve) (c) resistance vs sample states (d) oxygen content vs sample states. The M-H curves for air-heated is also shown in Fig. 4(a).
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