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Published in:
01-05-2011
Electrical properties of LiNi3/5Fe1/5Cu1/5VO4 ceramics
Published in: Journal of Materials Science: Materials in Electronics | Issue 5/2011
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Abstract
In this work, LiNi3/5Fe1/5Cu1/5VO4 ceramic was prepared by solution-based chemical route whose X-ray diffraction results reveal an orthorhombic unit cell structure with lattice parameters of a = 9.6329 (23) Å, b = 6.8527 (23) Å, c = 5.4667 (23) Å. Complex electrical impedance and electrical conductivity were studied using complex impedance spectroscopy technique. The analysis of complex electrical impedance shows: (i) grain interior, grain boundary and electrode-material interface contributions to electrical response and (ii) the presence of temperature dependent electrical relaxation phenomena in the material. A detailed study of electrical conductivity indicates that electrical conduction in the material is a thermally activated process.