Ce3+ -activated LiCaAlF6 (LiCAF) and LiSrAlF6 (LiSAF) single crystals are the most prospective active media for directly pumped UV solid-state tunable lasers. Due to the geterovalent activation nature of these crystals, ...

Spectroscopic study of fluoride crystals with various concentrations of terbium and cerium is performed. Analysis of these spectra shows that change of nature of rare-earth centers takes place under the variation of ...

We investigate the low temperature X-band electron paramagnetic resonance (EPR) of YBa2Cu3Ox compounds with x≅6.0 doped with Dy3+, Tb3+, and Nd3. The EPR spectra of Dy3+ and Tb3+ have been identified. The EPR of Tb3+ is ...

CsCdBr3 has a quasi-linear crystal structure. It consists of covalently bound [CdBr]6 4- chains separated by chains of Cs+ ions. The trivalent rare-earth (RE) ions substitute for divalent Cd ions forming predominantly pair ...

This paper reports a study of absorption, luminescence and excitation spectra of single- and double-doped Ce3+,Yb3+:SrAlF 5 (0.5 at%.) single crystals. Spectral properties of different types of impurity centers of Ce3+, ...

The spin relaxation of Yb3+-ions due to their coupling to antiferromagnetic spin waves existing in CuO2 planes in YBa2Cu3O6+y compound is reported. It is shown that it results in a strong temperature dependence of electron ...