10.1186/2251-7235-7-26

Electrical conduction in nanoceramic PGT synthesised by high energy ball milling

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  • OICC Press Authors*1,
  1. Various OICC Press Authors

Published in Issue 2023-11-17

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Press Authors O. Electrical conduction in nanoceramic PGT synthesised by high energy ball milling. J Theor Appl phys. 2023 Nov. 17;7(1). Available from: https://oiccpress.com/jtap/article/view/2090
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Abstract

AbstractNanocrystalline Pb1â3x/2GdxTiO3 (where xâ=â0.01) abbreviated as PGT has been synthesised by high energy ball milling at room temperature. X-ray analysis shows that single-phase tetragonal structure of nanocrystalline PGT was formed after 15-h milling. The average crystallite size was found to be 17 nm. The frequency-dependent AC conductivity of the PGT ceramic was studied in the range 100°C to 525°C. Complex impedance analysis suggested the dielectric relaxation to be of non-Debye type. The activation energy was found to be 1.04 ev. The mechanism of charge transport in nanocrystalline PGT was successfully explained by correlated hopping model.

Keywords

  • Activation energy,
  • Complex impedance spectroscopy,
  • Correlated barrier hopping,
  • High energy ball milling,
  • Nanocrystalline
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