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Scientific-technical journal

Abstract

The absorption spectra of Y2SiO5: Er3 + crystals irradiated with gamma rays and heat-treated under reducing conditions have been investigated. It is shown that, upon irradiation and heat treatment of crystals, oxygen is removed from the oxygen seven-vertex surrounding the cerium ions, which leads to the transformation of Er1 centers into Er2. The electronic transitions of erbium ions in Er1 and Er2 positions have been solved.

First Page

77

Last Page

81

References

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