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Optical and EPR spectroscopy of manganese ions in Sr3Ga2Ge4O14 crystals

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Abstract

Results of investigations of the spectroscopic properties of manganese-activated single crystals of Sr3Ga2Ge4O14 by the methods of optical and EPR spectroscopy are reported. It is shown that magnagese activator ions form substitutional centers Mn3+ and Mn2+ in 1a-octahedral positions of the Sr3Ga2Ge4O14 lattice. Changes in the opticla properties of Sr3Ga2Ge4O14: Mn after vacuum thermal annealing are attributed to charge transfer of some of the manganese ions (Mn3+→Mn2+). The relationship between the spectroscopical properties of Mn2+ ions and the crystallochemical structure of the system are discussed.

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Authors
  1. A. E. Nosenko
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  2. R. E. Leshchuk
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  3. A. A. Sel’skii
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  4. V. V. Kravchishin
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Additional information

I. Franko L’vov State University, 50, Dragomanov St., L’vov, 290005, Ukraine. Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 64, No. 6, pp. 779–783, November–December, 1997.

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Nosenko, A.E., Leshchuk, R.E., Sel’skii, A.A. et al. Optical and EPR spectroscopy of manganese ions in Sr3Ga2Ge4O14 crystals. J Appl Spectrosc 64, 793–797 (1997). https://doi.org/10.1007/BF02678862

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  • DOI: https://doi.org/10.1007/BF02678862

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