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Type of publication: Straipsnis Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or / and Scopus (S1)
Field of Science: Fizika / Physics (N002)
Author(s): Audzijonis, Algirdas;Žaltauskas, Raimundas;Sereika, Raimundas;Žigas, Leonardas;Rėza, Alfonsas
Title: Electronic structure and optical properties of BiSI crystal
Is part of: Journal of physics and chemistry of solids. , Vol. 71, iss. 6 (2010)
Extent: p. 884-891
Date: 2010
Keywords: Semiconductors;Crystal growth;Dielectric properties;Ab initio calculations
Abstract: Electronic structure and optical properties of BiSI crystal were investigated by the full potential linearized augmented plane wave (FL-LAPW) method with density functional theory (DFT). The complex dielectric function and optical constants, such as optical absorption coefficient, refractive index, extinction coefficient, energy-loss spectrum and reflectivity, were calculated. The optical properties of BiSI crystal were studied experimentally by spectroscopic ellipsometry. The experimental results were compared with the theoretical spectra of complex dielectric functions and with the spectra of a pseudo-dielectric function (PDF). This method shows that experimental spectra consist of four Laurence lines sum
Affiliation(s): Vytauto Didžiojo universitetas
Švietimo akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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