Abstract
Chemical co-precipitation method is employed to synthesize ZnO, MgO and Zn0.5Mg0.5O nanoparticles. X-ray diffraction (XRD) pattern infers that the sample of ZnO is in single-phase wurtzite structure (hexagonal phase, P63mc), MgO crystallizes in cubic Fd3m space group and Zn0.5Mg0.5O represents mixed nature of ZnO and MgO lattices. MgO nanocrystals band around 1078cm−1 is ascribed to the TO–LO surface phonon modes in MgO lattice. In case of Zn0.5Mg0.5O lattice illustrating two bands at 436 and 1087cm−1. FTIR spectra clearly show the broad band within 450–600cm−1 is associated with the special vibration of magnesium oxide. FT-IR spectrum of Zn0.5Mg0.5O represents the combined bands of both ZnO–MgO oxides. Further the optical study obtained value of MgO (4.08eV) is much lower than the corresponding bulk value (7.08eV). All samples show diamagnetic nature at room temperature.
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