Optics and Spectroscopy

, Volume 88, Issue 3, pp 372–376

Superexchange mechanism of energy transfer between neighboring lanthanide ions in dielectric crystals

  • V. S. Mironov
Solid-State Spectroscopy

Abstract

It is shown that unusually rapid energy transfer between neighboring lanthanide ions in dielectric crystals is caused by the efficient short-range interaction, which is similar to the magnetic superexchange interaction. Both these interactions are related to virtual transition of electrons between lanthanide ions via common bridge ligands. A general method is developed for calculating matrix elements of the effective superexchange Hamiltonian, and the rates of energy transfer in exchange-coupled pairs of lanthanide ions are estimated. The possibility of using the superexchange model of energy transfer for analysis of up-conversion in lanthanide crystals is discussed.

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References

  1. 1.
    M. Eyal, R. Reisfeld, A. Schiller, et al., Chem. Phys. Lett. 140, 595 (1987).CrossRefADSGoogle Scholar
  2. 2.
    D. L. Dexter, J. Chem. Phys. 21, 836 (1953).CrossRefADSGoogle Scholar
  3. 3.
    F. Auzel, J. Lumin. 45, 341 (1990).CrossRefGoogle Scholar
  4. 4.
    F. Pellé and Ph. Goldner, Phys. Rev. B: Condens. Matter 48, 9995 (1993).ADSGoogle Scholar
  5. 5.
    U. Schäfer, J. Neukum, N. Bodenschatz, et al., J. Lumin. 60/bd61, 633 (1994).CrossRefGoogle Scholar
  6. 6.
    P. W. Anderson, Phys. Rev. B 115, 2 (1959).CrossRefADSGoogle Scholar
  7. 7.
    V. S. Mironov, J. Phys.: Condens. Matter 8, 10551 (1996).Google Scholar
  8. 8.
    M. P. Hehlen, K. Krämer, H. U. Güdel, et al., Phys. Rev. B: Condens. Matter 49, 12475 (1994).Google Scholar

Copyright information

© MAIK "Nauka/Interperiodica" 2000

Authors and Affiliations

  • V. S. Mironov
    • 1
  1. 1.Institute of CrystallographyRussian Academy of SciencesMoscowRussia

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