Hyperfine Interactions

, Volume 56, Issue 1–4, pp 1539–1544 | Cite as

Non-equilibrium population and slow relaxation of Fe2+ in57Co:LiNbO3 and57Co:LiTaO3 single crystals

  • O. Leupold
  • M. Billenstein
  • E. Giesse
  • W. Gruber
  • B. Molnár
  • D. L. Nagy
  • G. Ritter
  • U. Röhlich
After-Effects of Nuclear Transformation

Abstract

The Fe2+ fraction observed in the Mössbauer emission spectra of57Co:LiNbO3 and57Co:LiTaO3 exhibits both slow electronic relaxation and nonthermal populations of thems sublevels of the5Alg orbital singlet ground state at low temperatures (T<15 K) in high magnetic fields. The relaxation rates depend on temperature and on the angle ϕ between the magnetic field and the crystallographicc-axis.

Keywords

Magnetic Field Thin Film Emission Spectrum Relaxation Rate LiNbO3 

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References

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Copyright information

© J.C. Baltzer A.G. Scientific Publishing Company 1990

Authors and Affiliations

  • O. Leupold
    • 1
  • M. Billenstein
    • 1
  • E. Giesse
    • 1
  • W. Gruber
    • 1
  • B. Molnár
    • 2
  • D. L. Nagy
    • 2
  • G. Ritter
    • 1
  • U. Röhlich
    • 1
  1. 1.Physikalisches InstitutUniversität Erlangen-NürnbergErlangenFRG
  2. 2.Central Research Institute for PhysicsBudapestHungary

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