Abstract
The work is devoted to a high-resolution spectroscopy study of the perovskite-type single crystals of LaAlO3 doped with non-Kramers rare-earth ions of praseodymium, holmium and thulium. Doublets of a specific shape were observed in the spectra, which we attribute to the presence of random deformations in the crystals.
Highlights
We have chosen a LaAlO3 crystal that belongs to the family of perovskites, possesses a pseudo cubic structure, and has a promising application potential
There are Г1 and Г2 singlet and Г3 doublet CF levels for a non Kramers RE3+ ion residing in the D3 symmetry position
Optical properties of LaAlO3 doped with Pr3+, Ho3+, and Tm3+ ions were studied in Refs. [4,5,6,7] under a medium spectral resolution
Summary
We have chosen a LaAlO3 crystal that belongs to the family of perovskites, possesses a pseudo cubic structure, and has a promising application potential. RE3+ ions in this compound substitute for La3+ which occupies a single crystallographic position with the D3 point symmetry. There are Г1 and Г2 singlet and Г3 doublet CF levels for a non Kramers RE3+ ion residing in the D3 symmetry position.
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