TRANSFORMATION AND FORMATION OF RADIATION-INDUCED POINT DEFECTS IN IRRADIATED LITHIUM FLUORIDE CRYSTALS AFTER THEIR MECHANICAL FRAGMENTATION
Abstract
It is shown that changes in the concentrations of usual radiation defects and formation of near-cluster radiation defects (color centers) occur in nanocrystals fabricated by mechanical fragmentation of irradiated LiF crystals. Concentrations of near-cluster color centers increase to a stationary value after fragmentation and remain constant at room temperature for a long time. It has been established that influence of UV radiation on fabricated nanocrystals after termination of center formation processes in them significantly increases the concentration of near-cluster defects containing three anion vacancies and two electrons. It is demonstrated that there are single-vacant color centers as well as usual and near-cluster aggregate color centers in unirradiated nanocrystals fabricated by fragmentation of unirradiated crystals.
About the Authors
A. P. Voitovich
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Russian Federation
Russian Federation
V. S. Kalinov
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Russian Federation
Russian Federation
V. V. Mashko
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Russian Federation
Russian Federation
A. N. Novikov
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Russian Federation
Russian Federation
L. P. Runets
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Russian Federation
Russian Federation
A. P. Stupak
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Russian Federation
Russian Federation
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Review
For citations:
Voitovich A.P., Kalinov V.S., Mashko V.V., Novikov A.N., Runets L.P., Stupak A.P. TRANSFORMATION AND FORMATION OF RADIATION-INDUCED POINT DEFECTS IN IRRADIATED LITHIUM FLUORIDE CRYSTALS AFTER THEIR MECHANICAL FRAGMENTATION. Zhurnal Prikladnoii Spektroskopii. 2019;86(1):71-77. (In Russ.)
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