Hyperfine Interactions

, Volume 5, Issue 1, pp 323–331 | Cite as

Molecular field effects in Mössbauer spectra of FeSb2O4

  • Gus A. Petitt
  • M. R. Meder


Mössbauer effect measurements have been made using57Fe in FeSb2O4. At liquid helium temperature a combined electric quadrupole and magnetic hyperfine interaction is observed withHeff=185±2 kOe, 1/2e2qQ=2.94±0.09 mm/sec and α=0.37±0.09. The direction ofHeff is perpendicular to thec axis of the crystal and at 33° to the <110> direction. Thec axis is determined to be the direction of the intermediate principal EFG tensor axis. Calculations are made using a molecular field term in the Hamiltonian for the Fe2+ orbitals. The results of these calculations are used to explain the observed values of 1/2e2qQ and η and permit a determination of the ordring of the T2g orbitals among the T2g energy levels.


Thin Film Helium Energy Level Field Effect Effect Measurement 
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Copyright information

© North-Holland Publishing Company 1977

Authors and Affiliations

  • Gus A. Petitt
    • 1
  • M. R. Meder
    • 1
  1. 1.Georgia State UniversityAtlantaUSA

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