Broadband EPR Spectroscopy of Tb3+ and Fe2+ Ions in YAlO3 Single Crystals

A YAlO 3 crystal with an admixture of iron was studied by broadband EPR spectroscopy. Two types of paramagnetic centers were found. The energy level scheme of one of them is a singlet and a doublet with a splitting of 215.2 GHz. This center is presumably associated with the Fe 2+ ion. The second cen...

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Bibliographic Details
Published in:Physics of the solid state 2021-12, Vol.63 (12), p.1879-1883
Main Authors: Asatryan, G. R., Shakurov, G. S., Il’in, I. V., Petrosyan, A. G., Ovanesyan, K. L., Derdzyan, M. V.
Format: Article
Language:English
Subjects:
Broadband
Crystal lattices
Crystals
Energy levels
Ferrous ions
Impurities
Physics
Physics and Astronomy
Single crystals
Solid State Physics
Spectrum analysis
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Summary:A YAlO 3 crystal with an admixture of iron was studied by broadband EPR spectroscopy. Two types of paramagnetic centers were found. The energy level scheme of one of them is a singlet and a doublet with a splitting of 215.2 GHz. This center is presumably associated with the Fe 2+ ion. The second center was identified as the Tb 3+ ion, which entered the crystal as an uncontrolled impurity. The localization of the impurity ion in the YAlO 3 crystal lattice is determined for each case. Within the framework of the existing theory, calculations are carried out and spectral parameters are determined.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783421100048