Please use this identifier to cite or link to this item:
Type of publication: research article
Type of publication (PDB): Straipsnis Clarivate Analytics Web of Science / Article in Clarivate Analytics Web of Science (S1)
Field of Science: Fizika / Physics (N002)
Author(s): Audzijonis, Algirdas;Gaigalas, Gediminas;Žigas, Leonardas;Sereika, Raimundas;Žaltauskas, Raimundas;Balnionis, Donatas Šarūnas;Rėza, Alfonsas
Title: Electronic structure and optical properties of BiSel crystal
Is part of: Physica status solidi. B, Basic solid state physics. , Vol. 246, no. 7 (2009)
Extent: p. 1702-1708
Date: 2009
Abstract: Electronic structure and optical properties of BiSeI were investigated with ab initio calculations based on density-functional theory (DFT). The full potential linearized augmented plane wave (FP-LAPW) method was used with the generalized gradient approximation (GGA). The complex dielectric function and optical constants, such as optical absorption coefficient, refractive index, extinction coefficient, energy-loss spectrum and reflectivity, were calculated. It is shown that the p-states of Bi, Se and I play an important role in absorption and reflectivity constants. The calculated optical constants of BiSeI exhibit anisotropy in two directions (x- and c-axes). The experimental optical dielectric functions for single-crystal BiSeI were determined using spectroscopic ellipsometry. The ellipsometry results were analyzed using the approximation of a pseudodielectric function (PDF). This method shows that experimental spectra consist of a four Lorentzian lines sum. The Lorentzian line parameters are obtained by minimization using the mean-square method of the difference between the calculated and measured spectra of the dielectric constants. (© 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Affiliation(s): Vytauto Didžiojo universitetas
Švietimo akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

Files in This Item:
marc.xml7.44 kBXMLView/Open

MARC21 XML metadata

Show full item record
Export via OAI-PMH Interface in XML Formats
Export to Other Non-XML Formats

CORE Recommender

Citations 5

checked on Jun 6, 2021

Page view(s)

checked on Jun 6, 2021


checked on Jun 6, 2021

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.