N. V. Sidorov, V. A. Sandler, M. N. Palatnikov, “Anomalous of stoichiometric lithium niobate crystals in the temperature range 100–400K”, Optics and Spectroscopy, 2021, Volume 129, Issue 6,Pages <nobr>766

Optical materials

Anomalous of stoichiometric lithium niobate crystals in the temperature range 100–400K

N. V. Sidorov, V. A. Sandler, M. N. Palatnikov

Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials Kola Science Centre of the Russian Academy of Sciences, Apatity, Murmansk oblast, Russia

Abstract: Anomalous thermal behavior of Raman bands intensities was shown to be different in congruent and stoichiometric lithium niobate crystals. The differences are caused by existence of different types of electron traps and difference in Rayleigh photoinduced light scattering values in these crystals.

Keywords: stoichiometric and congruent lithium niobate crystals, Raman and Rayleigh photoinduced light scattering, thermolysis of shallow electron traps.

Received: 04.12.2020
Revised: 04.12.2020
Accepted: 16.02.2021

DOI: 10.21883/OS.2021.06.50991.301-20