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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 18:06 |
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Conference: Bucharest University Faculty of Physics 2009 Meeting
Section: Atomic and Molecular Physics; Astrophysics
Title:
Multifrequency EPR investigation of the Ce3+
ground multiplet in PbWO4 single crystals
Authors:
F.F. Popescu1, V.Bercu1, J.N.Barascu1, M. Martinelli2, C.A.Massa2, L.A.Pardi2, M.Stefan3, S.V.Nistor3, M.Nikl4, P. Bohacek4.
Affiliation:
1. Department of Physics, University of Bucharest, Magurele, RO-077125, Bucharest, Romania.
2. IPCF-CNR, via G.Moruzzi 1, I-56124 Pisa, Italy.
3. National Institute for Materials Physics, POB MG-7 Magurele, RO-077125, Bucharest,
Romania.
4.Institute of Physics AS CR, Cukrovarnicka 10, CZ-16200 Prague 6, Czech Republic.
E-mail
vbercu@gmail.com
Keywords:
EPR, crystal field splitting
Abstract:
A multifrequency Electron Paramagnetic Resonance (EPR) investigation of Ce3+ impurities in PbWO4 (PWO) single-crystals at the conventional microwave (CMF) frequency 9.43 GHz, and at the 95, 190 and 285 GHz high frequencies (HF) was carried out. The multifrequency CMF and HF −EPR analysis gives a good description of the local symmetry of the Ce3+ impurities in PWO and estimates the crystal field splitting of the corresponding ground multiplet.
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