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

DOI: 10.1134/1.626804

Cite this article as:
Mironov, V.S. Opt. Spectrosc. (2000) 88: 372. doi:10.1134/1.626804
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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.

Copyright information

© MAIK "Nauka/Interperiodica" 2000

Authors and Affiliations

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