F-Centres of Two Types in BaFCl Crystals
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E. Nicklaus; F. Fischer
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Article
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1972
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John Wiley and Sons
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English
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## Abstract Fβcentres in Xβirradiated and additively coloured tetragonal BaFCl single crystals have been studied. An Fβcentre at a fluorine site absorbs light polarized parallel to the crystallographic __c__βaxis in a band at 438 nm and light polarized perpendicular to __c__ in a band at 550 nm. A