| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7906747 | Optical Materials | 2018 | 5 Pages |
Abstract
Circular dichroism, absorption and luminescence spectra of single crystalline manganese doped calcium gallogermanate Ca3Ga2Ge4O14:Mn were investigated in 300-850â¯nm wavelength region in wide temperature range 8-300â¯K. Careful analysis of experimental results revealed presence of electron transitions typical for sixfold coordinated trivalent manganese ions with d4 electron configuration. Thus, manganese ions doping the crystal matrix of CCG incorporate into lattice in 1a octahedral site-positions substituting Ga3+ ions. The results obtained were compared with investigation of isostructural to CGG manganese doped langasite crystals, La3Ga5SiO14:Mn where dopant is in octahedral Mn4+ state.
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Vladimir Burkov, Liudmila Alyabyeva, Boris Mill, Viacheslav Kotov,