6533b852fe1ef96bd12ab581
RESEARCH PRODUCT
Annealing of Radiation Defects in X-Irradiated LiBaF3
Andis GrozaValters ZirapsP. KulisMaris SpringisA. VeispalsI. TaleUldis Rogulissubject
CrystalMaterials scienceAnnealing (metallurgy)ImpurityVacancy defectActivation energyIrradiationMolecular physicsRecombinationIondescription
AbstractResults of application of the glow rate technique GRT for analysis of the activation energy of thermostimulated annealing of X-ray created F-type color centers in LiBaF3 crystals, pure and containing hetero-valence oxygen centers are presented. It is shown that depending on impurity composition in crystal two alternative mechanisms are involved in annealing of color centers. It is proposed that either the anion vacancy governed migration of F- centers resulting in recombination with complementary defects, or the thermal delocalization of radiation created fluorine (Fi) interstitials captured by anti-structure defects followed by recombination with all kinds of complementary F- type centers are responsible for the recombination of radiation defects above RT.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-01-01 | MRS Proceedings |