Predisintegration phenomena in CaF 2 crystals activated by Europium, Manganese and Gadolinium

The local impurity distribution in fluorite single crystals activated by europium, gadolinium and manganese has been studied with the aid of a scanning electron microscope. It is shown that the impurities in a crystal are distributed nonuniformly to form regions enriched and depleted with impurity....

Full description

Saved in:
Bibliographic Details
Published inJournal of crystal growth Vol. 49; no. 1; pp. 109 - 114
Main Authors Orlov, Yu.N., Bozhevol'nov, V.E., Ivanov, L.N., Sluev, V.I., Obyden, S.K., Saparin, G.V., Spivak, G.V., Karelin, V.V.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 1980
Online AccessGet full text

Cover

More Information
Summary:The local impurity distribution in fluorite single crystals activated by europium, gadolinium and manganese has been studied with the aid of a scanning electron microscope. It is shown that the impurities in a crystal are distributed nonuniformly to form regions enriched and depleted with impurity. It is proved that the nonuniform distribution of activators due to disintegration processes of solid solutions and to the impurity redistribution occurring in the course of annealing of the crystals. The concentration stability limits of solid solutions in the CaF 2-EuF 2 and CaF 2-MnF 2 systems have been calculated.
ISSN:0022-0248
1873-5002
DOI:10.1016/0022-0248(80)90069-X