Pressure- and temperature-induced structural phase transitions in fluoride matrices monitoring by Eu3+ luminescence

The precipitation of micro-crystals identified as EuZrF 7 has been induced by thermal treatment in the Eu 3+ -doped fluorozirconate glass. Moreover, using luminiscence of the Eu 3+ ion, the experimental evidence of a reverse change has been obtained by a pressure-induced amorphization of the EuZrF 7...

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Bibliographic Details
Published in:High pressure research 2006-12, Vol.26 (4), p.411-414
Main Authors: Lavín, V., Muñoz-Santiuste, J. E., Tröster, Th, Rodríguez-Mendoza, U. R., González-Platas, J., González-Silgo, C., Martín, I. R., Rivera-López, F., González-Pérez, S.
Format: Article
Language:English
Subjects:
Crystallization
Fluoride
Luminescence
Phase transition
Pressure
Online Access:Get full text
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Summary:The precipitation of micro-crystals identified as EuZrF 7 has been induced by thermal treatment in the Eu 3+ -doped fluorozirconate glass. Moreover, using luminiscence of the Eu 3+ ion, the experimental evidence of a reverse change has been obtained by a pressure-induced amorphization of the EuZrF 7 polycrystal. There is a unique kind of site in the fluorozirconate glass, in which the different environments for the Eu 3+ ions are generated by distortions of the EuZrF 7 crystalline structure.
ISSN:0895-7959
1477-2299
DOI:10.1080/08957950601103932