Spectroscopy of radiation-induced and structural defects in garnet crystals with V and Cr impurity ions |
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| Authors: | A. V. Sandulenko and N. A. Kulagin |
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| Affiliation: | (1) Research Institute of Optical Materials, St. Petersburg, 193171, Russia;(2) Kharkov National University of Radioelectronics, Kharkov, 61045, Ukraine |
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| Abstract: | The optical absorption spectra of crystals with garnet structure (A3B2C3O12), containing V or Cr impurity ions, before and after oxidation annealing, γ irradiation, and coactivation with Ca and Mg ions have been experimentally and theoretically investigated. It is shown that V3+ and Cr4+ ions are incorporated into both octahedral and tetrahedral sites of the garnet lattice. The absorption spectra and energy level diagrams of impurity ions are identified. |
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