• New perovskite-related oxides having high dielectric constant: Ln2Ba2CaZn2Ti3O14 (Ln = La and Pr)

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/115/05-06/0431-0438

    • Keywords

       

      Perovskite structure; oxides; dielectric material

    • Abstract

       

      Two new oxides, La2Ba2CaZn2Ti3O14 and Pr2Ba2CaZn2Ti3O14, have been synthesized by the ceramic route at 1100°C. These oxides crystallize in the disordered cubic structure with an ‘a’ lattice parameter of 3.9728 (2) and 3.9448 (5) respectively. These oxides show high dielectric constant (70 and 57) and low loss (0.003 and 0.013 at 100 kHz) for La2Ba2CaZn2Ti3O14 and Pr2Ba2CaZn2Ti3O14 respectively. The dielectric constant is highly stable with frequency and temperature.

    • Author Affiliations

       

      Pika Jha1 Ashok K Ganguli1

      1. Department of Chemistry, Indian Institute of Technology, Hauz Khas, New Delhi - 110 016, India
    • Dates

       
  • Journal of Chemical Sciences | News

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