Abstract
A lead-free complex perovskite, strontium nickel tungsten manganite Sr(Ni1/3Mn1/3W1/3)O3(SNMWO), was synthesized following a cost-effective standard ceramic processing technology. The structure of the compound was found to be cubic. A detailed study of scanning electron micrograph and the energy-dispersive spectra of SNMWO provided the quality and composition of the material. The average crystallite size (Dhkl) of SNMWO was found to be about 22 nm, which was calculated using Scherrer relation. The analysis of the data of dielectric, impedance and electrical conduction for a wide range of frequency and temperature of SNMWO provides interesting characteristics for useful applications. The dielectric relaxation and electrical properties are related to the grains, grain boundaries and electrode characteristics of SNMOW. Such characteristics of the material help us to understand the correlation between conduction mechanism and microstructure of the material for electronic applications. The important electrical properties were evaluated from the simulation of the Nyquist plots with the help of an equivalent electrical circuit. The transport properties along with the ac-conductivity, modulus (electrical) of Sr (Ni1/3Mn1/3W1/3)O3, were also presented in the paper.
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Acknowledgments
The present work is funded by the UGC-DAE-CSR, Mumbai (CRS-M-297). The authors would like to thank Dr. P. D. Babu of UGC-DAE-CSR, Mumbai, and Dr. Raja KishoraLenkaof Powder Metallurgy Division, BARC, Mumbai, for providing facilities to conduct.
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Khatua, D., Dehury, S.K., Parida, S.K. et al. Studies of structural, dielectric and electrical characteristics of complex perovskite: Sr(Ni1/3Mn1/3W1/3)O3. Indian J Phys 95, 1147–1155 (2021). https://doi.org/10.1007/s12648-020-01789-1
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DOI: https://doi.org/10.1007/s12648-020-01789-1