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Abstracts
The room temperature IR- and Raman spectra of the different M_{3}RE(PO_{4})_{2} (M = K, Rb; RE = La, Eu, Gd) double phosphates were analysed and used to interpret the vibronic side band structure in the photoluminescence spectra. The intraconfigurational 4f-4f electronic transitions in the photoluminescence spectra of the Eu^{3+} doped M_{3}RE(PO_{4})_{2} were analysed in detail. The crystal field fine structure of the ^{5}D_{0} → ^{7}F_{J} (J=0-4) transitions was analysed accounting for the information on the crystal structure. The effect of the temperature as well as the alkali host cation was evaluated. Finally, a preliminary crystal field energy level scheme for the ^{7}F_{J} (J=0-4) ground term was deduced from the analysis of the photo-luminescence as well as IR- and Raman spectra.
Discipline
- 61.66.Fn: Inorganic compounds
- 71.70.-d: Level splitting and interactions(see also 73.20.-r Surface and interface electron states; 75.30.Et Exchange and superexchange interactions)
- 71.20.Eh: Rare earth metals and alloys
- 61.50.-f: Structure of bulk crystals
- 78.55.-m: Photoluminescence, properties and materials(for time resolved luminescence, see 78.47.jd)
- 78.30.-j: Infrared and Raman spectra(for vibrational states in crystals and disordered systems, see 63.20.-e and 63.50.-x, respectively; for Raman spectra of superconductors, see 74.25.nd)
- 63.20.-e: Phonons in crystal lattices(for phonons in superconductors, see 74.25.Kc; see also 43.35.Gk Phonons in crystal lattice, quantum acoustics—in Acoustics Appendix)
- 71.20.Dg: Alkali and alkaline earth metals
Journal
Year
Volume
Issue
Pages
343-349
Physical description
Dates
published
1999-03
received
1998-08-22
(unknown)
1999-01-12
Contributors
author
- Ernst-Moritz-Arndt-University of Greifswald, Institute of Chemistry and Biochemistry, D-17487 Greifswald, Germany
author
- Ernst-Moritz-Arndt-University of Greifswald, Institute of Chemistry and Biochemistry, D-17487 Greifswald, Germany
author
- University of Turku, Department of Chemistry, FIN-20014 Turku, Finland
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv95z305kz