A room temperature and microwave method for the preparation M-Doped ZnO where M = Co, Cr, Fe, Mn & Ni is desribed. X-ray diffraction of the synthesized samples show a single phase ZnO structure without any indication of the dopant. Magnetic studies of the as prepared samples show it to be paramagnetic. However, hydrogenation of particular samples at 573 K for 6 hours resulted in transforming the samples to a room temperature ferromagnet.
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