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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

Analysis of the Eu3+ emission in a SrWO4 laser matrix under pressure

Fernando Rivera-López Departamento de Física Fundamental y Experimental, Electrónica y Sistemas;Correspondence[email protected]
,
I. R. Martín Departamento de Física Fundamental y Experimental, Electrónica y Sistemas;
,
I. Da Silva Departamento de Física Fundamental II, 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, Facultad de Física, Universidad de La Laguna, E-38200 San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain
,
U. R. Rodríguez-Mendoza Departamento de Física Fundamental y Experimental, Electrónica y Sistemas;
,
V. Lavín Departamento de Física Fundamental y Experimental, Electrónica y Sistemas;
,
F. Lahoz Departamento de Física Fundamental y Experimental, Electrónica y Sistemas;
,
S. Maceda Díaz-González Departamento de Física Fundamental y Experimental, Electrónica y Sistemas;
,
M. L. Martínez-Sarrión Departamento de Química Inorgánica, Facultad de Química, Universidad de Barcelona, Marti i Franquès 1-11, E-08028, Barcelona, Spain
,
L. Mestres Departamento de Química Inorgánica, Facultad de Química, Universidad de Barcelona, Marti i Franquès 1-11, E-08028, Barcelona, Spain
&
J. Fernández-Urban Departamento de Química Inorgánica, Facultad de Química, Universidad de Barcelona, Marti i Franquès 1-11, E-08028, Barcelona, Spain
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Pages 355-359 | Received 25 May 2006, Published online: 02 May 2007
 
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Abstract

Optical properties of the SrWO4 matrix doped with different Eu3+ concentrations (10%, 13% and 20%) have been studied. At ambient pressure, the temporal evolution of the emissions from the 5D1 level has been analyzed in the different doped crystals in order to discuss the energy transfer processes between the Eu3+ ions. This study lets conclude that the Eu3+ ions are randomly distributed in the matrix. Moreover, the 5D0→7F1, 2 emissions have been measured increasing the pressure up to 15 GPa in order to analyze the changes in the Eu3+ local structure. The results confirm the existence of a structural phase transition around 8.5 GPa.

Acknowledgements

This work has been partially supported by ‘Ministerio de Educacíon y Ciencia’ (MAT 2004-6868). Fernando Rivera-López is grateful to the CajaCanarias PhD Grant for the financial assistance.

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