"DE - Spolkov\u00E1 republika N\u011Bmecko" . "10.1002/pssb.201451135" . "Trepakov, Vladim\u00EDr" . "Optical and EPR characterization of Er3+ centers in SrTiO3 single crystals"@en . "4"^^ . "We report on optical absorption and EPR spectroscopy studies of low Er doped (50 ppm) SrTiO3 single crystals. In the region of 400\u2013650 nm a set of optical intra-configurational f\u2013f transitions from the 4I15/2 ground state to the excited 4F9/2, 4S3/2, 2H11/2, and 2H9/2 Stark sublevels of the Er3+ impurity ions were observed and identified. At T=2K the number of registered optical transitions evidences the presence of only one type of Er3+ centers with non-cubic symmetry. The system of the energy levels for Er3+ excited states is determined. The X-band EPR spectra at 5.2 K revealed the rhombic symmetry of Er impurity centers. The components of a rhombic g-tensor were defined. It was suggested that Er ions substitute Sr ions in A-sublattice sites." . "Optical and EPR characterization of Er3+ centers in SrTiO3 single crystals"@en . "251" . "Jastrab\u00EDk, Lubom\u00EDr" . "Physica Status Solidi B-Basic Solid State Physics" . . . . . "RIV/68378271:_____/14:00435573!RIV15-GA0-68378271" . "Dejneka, Alexandr" . "Optical and EPR characterization of Er3+ centers in SrTiO3 single crystals" . . "We report on optical absorption and EPR spectroscopy studies of low Er doped (50 ppm) SrTiO3 single crystals. In the region of 400\u2013650 nm a set of optical intra-configurational f\u2013f transitions from the 4I15/2 ground state to the excited 4F9/2, 4S3/2, 2H11/2, and 2H9/2 Stark sublevels of the Er3+ impurity ions were observed and identified. At T=2K the number of registered optical transitions evidences the presence of only one type of Er3+ centers with non-cubic symmetry. The system of the energy levels for Er3+ excited states is determined. The X-band EPR spectra at 5.2 K revealed the rhombic symmetry of Er impurity centers. The components of a rhombic g-tensor were defined. It was suggested that Er ions substitute Sr ions in A-sublattice sites."@en . "Pot\u016F\u010Dek, Zden\u011Bk" . . . "electron paramagnetic resonance spectroscopy; optical transmission; rare-earth ions; strontium titanate"@en . "I, P(GAP108/12/1941), P(LM2011029), P(TA01010517)" . . . . "6"^^ . . . "5"^^ . "Dejneka, Alexandr" . "[8CCBD5733572]" . . . "Skvortsov, A." . . "000344362700019" . "11" . . . "34718" . . . "RIV/68378271:_____/14:00435573" . . "0370-1972" . . . "Savchenko, Dariia" . "Optical and EPR characterization of Er3+ centers in SrTiO3 single crystals" .