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High Pressure Research
An International Journal
Volume 26, 2006 - Issue 4: Proceedings of The XXXXIV European High Pressure Research Group Meeting (EHPRG'44) Prague, 4–8 September, 2006
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Original Articles

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

V. Lavín Departamento de Física Fundamental y Experimental, Electrónica y SistemasCorrespondence[email protected]
,
J. E. Muñoz-Santiuste Departamento de Física Aplicada, Escuela Politécnica Superior, Universidad Carlos III de Madrid, Avenida del Mediterráneo 20, E-28913 Leganés, Madrid, Spain
,
Th. Tröster Facultät für Fahrzeugsysteme und Produktion, Cologne University of Applied Sciences, Betzdorfer Strasse 2, 50679, Köln, Germany
,
U. R. Rodríguez-Mendoza Departamento de Física Fundamental y Experimental, Electrónica y Sistemas
,
J. González-Platas Departamento de Física Fundamental II; Instituto Universitario de Bio-orgánica ‘Antonio González’ (IUBO). Facultad de Física, Universidad de La Laguna, E-38200 San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain
,
C. González-Silgo Departamento de Física Fundamental II
,
I. R. Martín Departamento de Física Fundamental y Experimental, Electrónica y Sistemas
,
F. Rivera-López Departamento de Física Fundamental y Experimental, Electrónica y Sistemas
&
S. González-Pérez Departamento de Física Fundamental y Experimental, Electrónica y Sistemas
 show all
Pages 411-414 | Received 29 May 2006, Published online: 02 May 2007
 
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Abstract

The precipitation of micro-crystals identified as EuZrF7 has been induced by thermal treatment in the Eu3+-doped fluorozirconate glass. Moreover, using luminiscence of the Eu3+ ion, the experimental evidence of a reverse change has been obtained by a pressure-induced amorphization of the EuZrF7 polycrystal. There is a unique kind of site in the fluorozirconate glass, in which the different environments for the Eu3+ ions are generated by distortions of the EuZrF7 crystalline structure.

Acknowledgements

This work has been partially supported by ‘Ministerio de Educacíon y Ciencia’ (MAT 2004-6868). F. Rivera-López and S. González-Pérez wish to thank Cajacanarias and ULL for Ph.D. grants.

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