Influence of boron on structural features and photorefractive properties of LiNbO3 single crystals
N.V. Sidorov, N.A. Teplyakova, R.A. Titov, M.N. Palatnikov
Tananaev Institute of Chemistry – Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences», Apatity, Russia
Abstract: An analysis of studies of single crystals of LiNbO3 stoich, LiNbO3 cong and LiNbO3 : B (0,83 mol.% B2O3 in the charge) was performed. It was established that boron present in the melt is unable to incorporate into the crystal structure of LiNbO3. Boron brings closer in magnitude to each other the effective distribution coefficients of lithium and niobium linking excess niobium in the process of complexation in a melt of a congruent composition. In this case, LiNbO3 : B crystals approach to the stoichiometric crystals in ordering the structural units.
Keywords: single crystal, lithium niobate, photoelectric field, boron, doping, melt structuring.
Sidorov, N.V. Influence of boron on structural features and photorefractive properties of LiNbO3 single crystals / N.V. Sidorov, N.A. Teplyakova, R.A. Titov et al. // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials: Interuniversity collection of proceedings / Ed. by V.M. Samsonov, N.Yu. Sdobnyakov. – Tver: TSU, 2019. – I. 11. – P. 223-231.
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