• Structural and magnetic properties of CaAl4Fe8O19

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    • Keywords


      Magnetoplumbite; electrical conductivity; paramagnetic susceptibility; curie molar constant

    • Abstract


      A new compound, CaAl4Fe8O19, was synthesized for the first time and characterized by X-ray diffraction. It was found to have a hexagonal magnetoplumbite structure with lattice parametersa=5·83 Å andc=22·14 Å. The electrical studies showed that the compound was a semiconductor with energy of activationq=0·86 eV. The magnetic susceptibility was studied in the temperature range 300 K to 850 K, in which the compound was paramagnetic with a Curie molar constant of 31·03.

    • Author Affiliations


      D K Kulkarni1 C S Prakash1

      1. Department of Physics, Institute of Science, Nagpur - 440 001, India
    • Dates

  • Bulletin of Materials Science | News

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