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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
Article

Abstract

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.

Keywords

Thin Film Helium Energy Level Field Effect Effect Measurement 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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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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