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Photo-EPR of a Fe3+doped BaTiO3single-crystal at 15 K under copper vapor laser illumination

Authors
Journal
Solid State Communications
0038-1098
Publisher
Elsevier
Publication Date
Volume
118
Issue
4
Identifiers
DOI: 10.1016/s0038-1098(01)00058-8
Keywords
  • E. Ferroelectrics
  • C. Point Defects
  • D. Recombination And Trapping
  • E. Electron Paramagnetic Resonance

Abstract

Abstract Photo-EPR investigation of the Fe 3+ ion in a BaTiO 3 single-crystal at 15 K using in situ copper vapor laser (CVL) illumination has shown that the electron transfer at the Fe site is symmetry dependent. It was seen that relaxation of the photo-induced electron transfer to the pre-illumination condition occurred even at 15 K very quickly. The growth and decay kinetics were found to be nearly identical. These investigations have shown that the history of the sample and the wavelength of light have an important role in the photo induced charge transfer process.

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