Investigation of intrinsic defect structure in 0.91Pb(Zn1/3Nb2/3)O3-0.09PbTiO3 single crystal through AC conductivity

Ajit R. James, Shashank Priya, Kenji Uchino, Kuchipudi Srinivas, Vemuri V. Kiran

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Complex impedance spectroscopy study was done on 0.91Pb(Zn1/3Nb2/3)O3-0.09PbTiO3 (PZN-PT) single crystals in the wide range of temperatures (25-525°C) and frequencies (1 kHz-1 MHz). The ac conductivity was computed from the impedance data and the activation energy for conduction at different frequencies was determined. Frequency explicit plots of imaginary components of impedance exhibit Debye-like peak shapes. Cole-Cole diagrams were observed in the high temperature regime. Temperature dependent conductivity measurement and Cole-Cole plots fairly establish the existence of quenched random defects in the PZN-PT system.

Original languageEnglish (US)
Pages (from-to)5272-5276
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Issue number8
StatePublished - Aug 2002

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)


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