Pressure-induced phase transition in LiLuF4:Pr3+ investigated by an optical technique

The luminescence and luminescence kinetics of LiLuF4 doped with 1.5 at.% of Pr3+ obtained at high hydrostatic pressure changing from ambient to 220 kbar applied in a diamond anvil cell are presented. It has been shown that pressure causes shift of the emission lines toward the red with rates of the...

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Bibliographic Details
Published in:Journal of physics. Condensed matter 2012-03, Vol.24 (11), p.115502-115502
Main Authors: Lazarowska, A, Mahlik, S, Krosnicki, M, Grinberg, M, Malinowski, M
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Other solid inorganic materials
Photoluminescence
Physics
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Summary:The luminescence and luminescence kinetics of LiLuF4 doped with 1.5 at.% of Pr3+ obtained at high hydrostatic pressure changing from ambient to 220 kbar applied in a diamond anvil cell are presented. It has been shown that pressure causes shift of the emission lines toward the red with rates of the order of single cm−1 kbar−1. The pressure-induced phase transition from tetragonal to fergusonite structure for pressure above 100 kbar was observed. The crystal field calculations performed showed that this phase transition reduces the point symmetry of the Pr3+ site from the S4 to the C2 point group.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/24/11/115502