Trigonal Cr3+ centers in ferroelectric lead germanate

Vazhenin, V. A.; Потапов, А. П.; Фокин, А. В.; Shakurov, G. S.; Gorlov, A. D.; Artyomov, M. Yu.

doi:10.1016/j.optmat.2020.109855

Cited by 3 publications

(1 citation statement)

References 15 publications

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“…In the ferroelectric phase, PGO also demonstrates natural optical activity (OA) or gyration (Iwasaki et al, 1972). The structure of apatite and nasonite in lead germanate (Eysel et al, 1973) provides good conditions for ion substitution and obtaining doped crystals (Bachulska et al, 2018;Vazhenin et al, 2020;Viennois et al, 2018;Vinnik et al, 2018). New data on its piezo-optic, elasto-optic and electro-optic properties (Martynyuk-Lototska et al, 2020;Demyanyshyn et al, 2020) show good parameters of this material for the infrared spectral region.…”

Section: Introductionmentioning

confidence: 99%

High-accuracy polarimetric studies on lead germanate single crystals

2021

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A high-accuracy polarimetric technique has been used for the characterization of a lead germanate ferroelectric single crystal. The measurement results of the linear and circular birefringence in the [010] direction at a wavelength of 633 nm under the influence of an electric field are presented. Gyration–electric field hysteresis loops at alternative crystal positions in the polarization system have been used to determine the ellipticity of the eigenwaves. A temperature dependence of the gyration tensor component g 11 in the temperature range of 300–450 K was found.

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Section: Introductionmentioning

confidence: 99%

High-accuracy polarimetric studies on lead germanate single crystals

2021

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Effect of High-Energy Electron Irradiation on the Structural, Dielectric, and Nonlinear Optical Properties of Single Crystals of Pb5(Ge1–хSix)3O11 (0 ≤ x ≤ 0.55) Solid Solutions

Иванов

Stash²,

Буш³

et al. 2023

J Struct Chem

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Composition-Related Dielectric, Ferroelectric and Electrocaloric Properties of Pb5Ge3O11 Single Crystals Modified by Ba Ions

et al. 2023

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In this paper, we studied some ferroelectric properties of archetypal oxide uniaxial ferroelectric single crystals of Pb5Ge3O11 modified by Ba ions. They include dielectric, DSC, ferroelectric polarization, and electrocaloric effect (ECE) measurements. The measurements show that increasing Ba doping considerably influences all the measured parameters, mainly by lowering the Curie temperature, gradually diffusing the phase transition, and decreasing values of polarization as well as the coercive field. The decrease in overall ECE is influenced by decreasing polarization. Compared with the pure PGO single crystals, this decrease is from 1.2 K to 0.2 K. However, the effect of diffusing the phase transition increases the range of its occurrence (up to 30 K), which might be beneficial in applications.

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Trigonal Cr3+ centers in ferroelectric lead germanate

Cited by 3 publications

References 15 publications

High-accuracy polarimetric studies on lead germanate single crystals

High-accuracy polarimetric studies on lead germanate single crystals

Effect of High-Energy Electron Irradiation on the Structural, Dielectric, and Nonlinear Optical Properties of Single Crystals of Pb5(Ge1–хSix)3O11 (0 ≤ x ≤ 0.55) Solid Solutions

Composition-Related Dielectric, Ferroelectric and Electrocaloric Properties of Pb5Ge3O11 Single Crystals Modified by Ba Ions

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