Abstract:The polycrystalline double perovskite-La 2 CoNiO 6 ceramics were successfully synthesised by facile wet chemical route. The X-ray diffraction pattern has confirmed the formation of rhombohedral phase with 3 R c symmetry and calculated value of lattice parameters as, a = b = 5.64 Å and c =13.25 Å, respectively. The presence of La 3+ ions, Co 2+ / Co 3+ ions, and Ni 2+ ions on the surface of La 2 CoNiO 6 has been exhibited via X-ray photoelectron spectroscopy. The temperature and frequency dependent dielectric a… Show more
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