Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials
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Investigation of acoustic, optical and photorefractive properties of multicrystals of lithium niobate doped with zinc in the area of concentrations of 5,38-9,0 mol.% Zn

I.N. Efremov, S.M. Masloboeva, I.V. Biryukova, N.A. Teplyakova, M.N. Palatnikov

I.V. Tananaev Institute of Chemistry – Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences»

DOI: 10.26456/pcascnn/2023.15.085

Original article

Abstract: Obtaining optical materials based on lithium niobate with controlled optical properties is animportant task of  modern materials science. To date the problem of obtaining heavily doped LiNbO3 crystals of optical quality with a macroscopically uniform impurity distribution has not been solved. In this work a comparative analysis of studies of the acoustic, optical and photorefractive properties of LiNbO3:Zn lithium niobate single crystals obtained by direct and homogeneous doping from melts with concentrations of 5,38-9,0 mol% Zn has been carried out. The following methods have been used: piezoacoustics, photoinduced light scattering and laser conoscopy. The values of the static piezoelectric modulus have been determined. According to these values, all crystals are single-domain. Studies of crystals have confirmed the absence of a photorefractive effect in them. It was established that LiNbO3:Zn crystals grown on the basis of the method of homogeneous doping with concentrations in the melt of 6,8-9,0 mol% Zn are characterized by the highest structural and optical uniformity. This is of interest for the technology of growing large zinc-doped lithium niobate crystals by the Czochralski method.

Keywords: lithium niobate, zinc doping, single crystal, static piezoelectric module, photoinduced light scattering, laser conoscopy, optical uniformity

  • Ilya N. Efremov – Junior Researcher, Materials of Electronic Engineering Laboratory, I.V. Tananaev Institute of Chemistry – Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences»
  • Sofia M. Masloboeva – Ph. D., Assistant Professor, Leading Researcher, Materials of Electronic Engineering Laboratory, I.V. Tananaev Institute of Chemistry – Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences»
  • Irina V. Biryukova – Ph. D., Senior Researcher, Materials of Electronic Engineering Laboratory, I.V. Tananaev Institute of Chemistry – Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences»
  • Natalya A. Teplyakova – Ph. D., Senior Researcher, Materials of Electronic Engineering Laboratory, I.V. Tananaev Institute of Chemistry – Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences»
  • Mikhail N. Palatnikov – Dr. Sc., Chief Researcher and acting Head of Materials of Electronic Engineering Laboratory, I.V. Tananaev Institute of Chemistry – Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences»

Reference:

Efremov, I.N. Investigation of acoustic, optical and photorefractive properties of multicrystals of lithium niobate doped with zinc in the area of concentrations of 5,38-9,0 mol.% Zn / I.N. Efremov, S.M. Masloboeva, I.V. Biryukova, N.A. Teplyakova, M.N. Palatnikov // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. — 2023. — I. 15. — P. 85-97. DOI: 10.26456/pcascnn/2023.15.085. (In Russian).

Full article (in Russian): download PDF file

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