Magnetic Hyperfine Interactions in Some Spinel Ferrites

  • B. J. Evans

Abstract

It is found that it is not possible to explain consistently the relative magnitudes of the hyperfine fields at the A and B sites in ferritic spinels in terms of the relative covalence of the Fe3+−O2− bonds alone. While the behavior of Heff(B) at high temperatures has been explained on the basis of a local molecular field model, this model does not account for the presence of several, different B site fields at T/TN, <.1. From measurements on nominally diamagnetic Sb5+ and Sn4+ it is shown that the “super” transferred hyperfine interactions may possibly be used to explain consistently the trends observed in the hyperfine fields in spinel ferrites.

Keywords

JETP Letter Isomer Shift Hyperfine Interaction Hyperfine Field Spinel Ferrite 
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Copyright information

© Springer Science+Business Media New York 1968

Authors and Affiliations

  • B. J. Evans
    • 1
  1. 1.Department of ChemistryUniversity of ChicagoChicagoUSA

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