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Spectroscopy of f13- lanthanides in fluoride crystals
Russian version
DOI: 10.61011/EOS.2023.04.56352.54-22
Radzhabov E. A.1, Shendrik R. Yu.1, Pankratov V.2
1Vinogradov Institute of Geochemistry, Siberian Branch, Russian Academy of Sciences, Irkutsk, Russia
2Institute of Solid State Physics, University of Latvia, Riga, Latvia
Email: eradzh@igc.irk.ru, roshen@yandex.ru, vladimirs.pankratovs@cfi.lu.lv
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The absorption and luminescence spectra of 4f-4f- transitions of Yb3+ ions in crystals of CaF2, SrF2 and BaF2 fluorides have been studied. The crystal splitting of the 2F7/2, 2F5/2 levels in Tm2+, Yb3+ by the cubic field decreases linearly with increasing lattice constant. Both lines intersect at the energy of 2F7/2-2F5/2 transitions in unperturbed Tm2+, Yb3+ ions. The positions of the f13- levels of Tm2+ or Yb3+ in fluoride crystals are well described by ab-initio relativistic calculations Keywords: absorption spectra, emission spectra, f13- levels, alkaline-earth fluorides. DOI: 10.61011/EOS.2023.04.56352.54-22
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