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Defect Complexes in Stoichiometric Lithium Niobate Crystals Prepared by Different Processes

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Abstract—

Using IR absorption spectroscopy in the stretching region of OH groups and Raman spectroscopy in the region of two-particle states of acoustic phonons, we have demonstrated that high-temperature top-seeded solution growth from a melt of congruent composition containing 6.0 wt % K2O flux in Kristall-2 commercially available growth units makes it possible to obtain nearly stoichiometric LiNbO3 crystals having approximately the same perfection of the proton sublattice as in stoichiometric crystals grown from a melt containing 58.6 mol % Li2O, but considerably surpassing them in general optical and structural homogeneity.

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Authors and Affiliations

  1. Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center Federal Research Center, Russian Academy of Sciences, Akademgorodok 26a, 184209, Apatity, Murmansk oblast, Russia

    N. V. Sidorov, M. N. Palatnikov & L. A. Bobreva

  2. Institute of Spectroscopy Federal Research Center, Russian Academy of Sciences, Fizicheskaya ul. 5, 198840, Troitsk, Moscow, Russia

    S. A. Klimin

Authors
  1. N. V. Sidorov
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  2. M. N. Palatnikov
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  3. L. A. Bobreva
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  4. S. A. Klimin
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Correspondence to N. V. Sidorov or S. A. Klimin.

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Translated by O. Tsarev

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Sidorov, N.V., Palatnikov, M.N., Bobreva, L.A. et al. Defect Complexes in Stoichiometric Lithium Niobate Crystals Prepared by Different Processes. Inorg Mater 55, 365–368 (2019). https://doi.org/10.1134/S0020168519040137

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  • DOI: https://doi.org/10.1134/S0020168519040137

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