Temperature shift of the zero-phonon f–f lines of Er.sup.3+./sup. luminescence in quantum paraelectric KTaO.sub.3./sub.

0533108 - FZÚ 2021 RIV RU eng J - Journal Article
Trepakov, V.A. - Skvortsov, A. P. - Potůček, Zdeněk - Jastrabík, Lubomír - Dejneka, Alexandr
Temperature shift of the zero-phonon f–f lines of Er³⁺ luminescence in quantum paraelectric KTaO₃.
Physics of the Solid State. Roč. 62, č. 5 (2020), s. 912-918. ISSN 1063-7834. E-ISSN 1090-6460
R&D Projects: GA MŠMT(CZ) EF16_019/0000760
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : quantum ABO₃ paraelectrics * rare earth impurities * luminescence * zero-phonon lines
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 0.895, year: 2020
Method of publishing: Limited access
https://doi.org/10.1134/S1063783420050303

In KTaO3:Er crystals, we observed a temperature shift, unusual for rare earth impurities, for narrow zero-phonon luminescence lines, due to the 4S3/2 → 4I13/2, 4F9/2 → 4I15/2, and 4S3/2 → 4I15/2 transitions in Er3+ impurity ions. The magnitude of the shifts turned out to be comparable with the large shifts of the R lines of the Cr3+ luminescence in SrTiO3:Cr and KTaO3 :Cr crystals, that is, substantially larger than that for the three-charged rare earth ions usually observed in the f–f luminescence spectra in ionic crystals.
Permanent Link: http://hdl.handle.net/11104/0311592