Radiation-induced color centers with new properties in lithium fluoride crystals subjected to thermal shocks or compression

• Published in: Radiation effects and defects in solids Vol. 176; no. 5-6; pp. 529 - 537
• Main Authors: Voitovich, A.P., Ignatenko, O.V., Kalinov, V.S., Kostik, O.E., Mashko, V.V., Novikov, A.N.
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 03-06-2021; Taylor & Francis Ltd
• Subjects: Clusters; Color centers; compression; Crystal defects; Crystals; Fluorides; Irradiation; Lithium; Lithium fluoride; nanoclusters; Nanocrystals; photoluminescence; Point defects; Radiation; radiation color centers; Radiation effects; thermal shocks
• ISSN: 1042-0150; 1029-4953
• DOI: 10.1080/10420150.2021.1878520

It has been established that in lithium fluoride crystals, subjected to pre-irradiation thermal shocks or compression, intrinsic point defects with new properties different from the known properties of the usual defects of the same composition are formed as a result of irradiation. The obtained new properties are similar to those for radiation-induced defects that were previously registered in nanocrystals and called near-cluster defects. It is shown that the combination of pre-irradiation heating and compression of a crystal increases the ratio of the concentrations of formed near-cluster and usual defects.