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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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Abstract
References
Статистика просмотров

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 ²F_7/2, ²F_5/2 levels in Tm²⁺, Yb³⁺ by the cubic field decreases linearly with increasing lattice constant. Both lines intersect at the energy of ²F_7/2-²F_5/2 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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