Study of the Kramers rare earth ions ground multiplet with a large orbital contribution by multifrequency EPR spectroscopy: Ce.sup.3+./sup. in PbWO.sub.4./sub. scintillator

0349219 - FZÚ 2011 RIV NL eng J - Journal Article
Popescu, F.F. - Bercu, V. - Barascu, J.N. - Martinelli, M. - Massa, C.A. - Pardi, L.A. - Stefan, M. - Nistor, S.V. - Nikl, Martin
Study of the Kramers rare earth ions ground multiplet with a large orbital contribution by multifrequency EPR spectroscopy: Ce³⁺ in PbWO₄ scintillator.
Optical Materials. Roč. 32, č. 5 (2010), s. 570-575. ISSN 0925-3467. E-ISSN 1873-1252
Institutional research plan: CEZ:AV0Z10100521
Keywords : rare earth ions * crystal field splitting * electron paramagnetic resonance (EPR)
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.679, year: 2010

A multifrequency Electron Paramagnetic Resonance (EPR) investigation of Ce3+ impurities in PbWO4 single-crystals at the conventional microwave frequency (X-band: 9.43 GHz) and at the high frequencies/fields 95, 190 and 285 GHz was carried out. The resulting spectra are well described at all frequencies by an axial spin-Hamiltonian corresponding to an effective spin one-half system in a tetragonal site symmetry.
Permanent Link: http://hdl.handle.net/11104/0189518