Please use this identifier to cite or link to this item:https://hdl.handle.net/20.500.12259/94404
Type of publication: Straipsnis konferencijos medžiagoje Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or Scopus DB conference proceedings (P1a)
Field of Science: Fizika / Physics (N002)
Author(s): Audzijonis, Algirdas;Gaigalas, Gediminas;Žigas, Leonardas;Sereika, Raimundas;Žaltauskas, Raimundas;Rėza, Alfonsas
Title: Optical properties of BiSeI crystals
Is part of: Radiation interaction with material and its use in technologies 2008 : international conference, Kaunas, Lithuania, 24-27 September 2008: program and materials. Kaunas: Kaunas university of technology press, 2008
Extent: p. 258-262
Date: 2008
Keywords: Ferroelectrics;Dielectric permittivity
Abstract: Task of this work is theoretical and experimental investigation of the optical properties and optical transitions in BiSel crystals in antiferroelectric phase (T = 295K). In the current paper we have calculated (DFT) and measured (optical reflectance ellipsometry) the dielectrics constants spectra of BiSel crystals. The theoretical and experimental imaginary dielectric constants were compared. Experimental spectra of the constants were analyzed considering that spectra structure consists of four Laurence lines sum. The Laurence line parameters are obtained by minimization using the mean-square method of the difference between the calculated and measured spectra of the dielectric constants
Internet: https://hdl.handle.net/20.500.12259/94404
Affiliation(s): Vytauto Didžiojo universitetas
Švietimo akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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