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Magnetic behaviours of Sm doped ZnO are studied both theoretically and experimentally. The results of first principles calculations indicate that Sm doped ZnO is ferromagnetic and the magnetic moment originates from the 4f electrons of the rare-earth element Sm. The local magnetic moments mediated by carriers in ZnO induce the ferromagnetic ordering. In addition, Sm dopants prefer uniformly distributed...
Co and Ni codoped ZnO-based dilute magnetic semiconductors having a general formula of Zn0.9Co0.1−xNixO (x=0.0, 0.02, 0.04, 0.06, 0.08 and 0.10) have been prepared using a simple solid-state reaction method. A single-phase hexagonal wurtzite structure, confirmed by X-ray diffraction, has been developed for Zn0.9Co0.1−xNixO (x<0.05), while minor secondary peaks of NiO were detected in samples having...
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