Thermal transformation of colour centres in LiF crystals with given content of oxygen, hydroxyl and metal ions

G. Baldacchini, O. Goncharova, V.S. Kalinov, R.M. Montereali, A. Vincenti, A.P. Voitovich

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Abstract

Processes of radiation creation and annealing of Frenkel defects, as well as their transformation processes, have been studied in γ-irradiated LiF single crystals containing various impurities, by means of measurements of thermally stimulated changes in absorption and emission spectra. Important information about the density of colour centres in LiF, which depends on γ-irradiation doses, impurities and temperatures, has been obtained for small crystal contents of oxygen, hydroxyl and metal ions. A comparison of annealing parameters of the LiF crystals subjected to different doses of irradiation, but to the same thermal bleaching procedures, has been performed and the results are critically discussed. © 2007 WILEY-VCH Verlag GmbH & Co. KGaA.
Original languageEnglish
Pages (from-to)1134 - 1138
Number of pages5
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume4
Issue number3
DOIs
Publication statusPublished - 2007
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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