New resources of the optical refraction method for investigation of phase transition in dielectrics: K2SO4and LiKSO4crystals

Andriyevsky, B.; Romanyuk, M. O.; Kurlyak, V. Yu.; Stadnyk, V. Yo.

doi:10.1080/00150199708216191

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1999

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“…In the previous papers [2,3] the method of solving the integral equation (IE) (1) had been offered. In the present paper the method of IE (1) solving has been presented in detail.…”

Section: Introductionmentioning

confidence: 99%

Peculiarities of Refractive Index Dispersion of TGS Crystals

Myshchyshyn¹,

Andriyevsky²,

Romanyuk³

et al. 1999

Condens. Matter Phys.

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Based on solving the Kramers-Kronig integral equation, binding the spectrum of refractive index n(ω) of dielectric experimentally measured in the range of transparency (ω) and its spectrum of absorption index k(ω ′ ) in the fundamental range (ω ′ ), the dispersion analysis of these parameters has been proposed. The elaborated method has been applied to the triglycine sulphate crystal, in which the display of valence electrons interaction has been established, and the temperature dependence of the characteristic parameter of this interaction has been studied in the region including the ferroelectric phase transition at T c = 49• C.

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“…In the previous papers [2,3] the method of solving the integral equation (IE) (1) had been offered. In the present paper the method of IE (1) solving has been presented in detail.…”

Section: Introductionmentioning

confidence: 99%