• N K Khatri

      Articles written in Pramana – Journal of Physics

    • Mossbauer study of ferrite systems CoxMn1−xFe2O4 and NixMn1−xFe2O4

      V K Singh N K Khatri S Lokanathan

      More Details Abstract Fulltext PDF

      Mössbauer spectra of CoxMn1−xFe2O4 and NixMn1−xFe2O4 ferrites withx values ranging from 0·1 to 0·8 in steps of 0·1 have been recorded at room temperature. All spectra exhibit well-defined Zeeman hyperfine patterns. It has been observed that hyperfine field at Fe3+ nucleus increases more rapidly by nickel substitution than by cobalt substitution. This has been explained in terms of exchange interactions and cation distribution in the spinels. Hyperfine fields, isomer shifts and quadrupole splittings have been determined.

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