• Exchange in insulators

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    • Keywords


      Superexchange interaction; ferrimagnetic materials; transfer integrals; covalency parameters

    • Abstract


      The exchange constants obtained using the three sublattice model for ferrites and garnets have been analysed using Anderson’s theory of superexchange. The transfer integrals for the 180° and 90° interactions obtained from the experimental values of exchange constants give approximate values of the covalency parameters which are consistent with the chemical theory of covalency.

    • Author Affiliations


      C M Srivastava1

      1. Department of Physics, Indian Institute of Technology, Powai, Bombay - 400 076, India
    • Dates

  • Bulletin of Materials Science | News

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      Posted on July 25, 2019

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