• Studies of structural and electrical properties of Pb(Li1/4Eu1/4Mo1/2)O3 ceramics

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      https://www.ias.ac.in/article/fulltext/boms/020/07/0909-0919

    • Keywords

       

      Distorted perovskite structure; dielectric anomaly; polarization reversal; phase transition; dc electrical resistivity

    • Abstract

       

      Polycrystalline sample of Pb(Li1/4Eu1/4Mo1/2)O3 was prepared by usual ceramic route. X-ray diffraction, SEM and EDAX were used to check the formation, homogeneity and elements present in the compound. The measurement of dielectric constant (ɛ), dielectric loss (tanδ), hysteresis loop parameters (e.g. spontaneous polarization) as function of frequency and temperature suggest that the compound is a ferroelectric one and has a ferro-paraelectric phase transition at 112 ± 2°C. The measurement of dc resistivity both as function of biasing electric field and temperature of the compound suggests that the compound has negative temperature coefficient (NTC) of resistance above 100°C.

    • Author Affiliations

       

      S Bera1 R N P Choudhary1

      1. Department of Physics and Meteorology, Indian Institute of Technology, Kharagpur - 721 302, India
    • Dates

       
  • Bulletin of Materials Science | News

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