Colour centres in LiBaF3

I. Tale*, P. Kulis, U. Rogulis, V. Tale, J. Trokss, A. Veispals, M. Barboza-Flores, H. J. Fitting

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


The X-ray-induced optical absorption (OA) and the spectra of magnetic circular dichroism (MCD) followed by optically detected EPR (ODEPR) have been investigated in undoped LiBaF3 crystals. According to ODEPR, the absorption bands in the spectral region 470-770 nm correspond to the F-type centres, whereas the absorption band at 420 nm is assigned to the hole centres. The redistribution of electrons to the thermal more stable F-type centres indicates that all types of colour centres are annealed in the course of the thermal release of electrons from F-type centres, accompanied by a thermostimulated luminescence.

Original languageEnglish
Pages (from-to)722-723
Number of pages2
JournalJournal of Luminescence
StatePublished - Jun 1997


  • Antiperovskites
  • Colour centres
  • F-centres
  • Optically detected EPR


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