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    • Keywords

       

      Lanthanum sodium cobalt niobium oxide; spin-state equilibria; magnetic susceptibility

    • Abstract

       

      The spin-state equilibria of cobalt ions in the system La1−xNaxCo1−xNbxO3 (x⩽0·40) has been studied by measuring its magnetic susceptibility as a function of temperature in the range 300–600 K. It is found that the behaviour of the samples withx⩽0·10 is similar to that of LaCoO3, while compositions withx⩾0·20 behave quite differently, exhibiting simple paramagnetic behaviour.

    • Author Affiliations

       

      Om Parkash1 N Chaturvedi1 M Tiwari1 2 Devendra Kumar1 3

      1. School of Materials Science and Technology, Institute of Technology, Banaras Hindu University, Varanasi - 221 005, India
      2. Department of Electrical Engineering, Institute of Technology, Banaras Hindu University, Varanasi - 221 005, India
      3. Department of Ceramic Engineering, Institute of Technology, Banaras Hindu University, Varanasi - 221 005, India
    • Dates

       
  • Bulletin of Materials Science | News

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