Calculation of optical functions of exciton and electron transitions by means of kramers-kronig relations in CuAlS2 crystals

Excitonic reflection spectra of CuAlS2 crystals were measured at a temperature of 10 K for E||c and Ec polarizations. The shapes of the lines of ground states of Г4 and Г5 excitons were calculated by means of the Kramers-Kronig relations. Exciton parameters and the values of energetic gaps (Г7Г6,...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Stamov, Ivan, Sîrbu, Nicolae, Korzun, B, Ursachi, Veaceslav, Dorogan, Andrei, Maşnic, Aliona
Formato:	article
Lenguaje:	EN
Publicado:	D.Ghitu Institute of Electronic Engineering and Nanotechnologies 2013
Materias:	Physics QC1-999 Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/1e51a79f19c8414db2cd66da68b9e1a3
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:1e51a79f19c8414db2cd66da68b9e1a3
record_format	dspace
spelling	oai:doaj.org-article:1e51a79f19c8414db2cd66da68b9e1a32021-11-21T12:00:13ZCalculation of optical functions of exciton and electron transitions by means of kramers-kronig relations in CuAlS2 crystals2537-63651810-648Xhttps://doaj.org/article/1e51a79f19c8414db2cd66da68b9e1a32013-09-01T00:00:00Zhttps://mjps.nanotech.md/archive/2013/article/27690https://doaj.org/toc/1810-648Xhttps://doaj.org/toc/2537-6365Excitonic reflection spectra of CuAlS2 crystals were measured at a temperature of 10 K for E\|\|c and Ec polarizations. The shapes of the lines of ground states of Г4 and Г5 excitons were calculated by means of the Kramers-Kronig relations. Exciton parameters and the values of energetic gaps (Г7Г6, Г6Г6, and Г7Г6) were determined. Optical reflection spectra in the depth of absorption band (Еg - 6 eV) were measured at 80 K for E\|\|c and Ec polarizations. Optical functions n, k, ε1, ε2, d2ε1/dE2 and d2ε2/dE2 were calculated for both polarizations. The revealed peculiarities are ascribed to electronic transitions in the frame of theoretical calculations of the band structure for crystals from this group.Stamov, IvanSîrbu, NicolaeKorzun, BUrsachi, VeaceslavDorogan, AndreiMaşnic, AlionaD.Ghitu Institute of Electronic Engineering and NanotechnologiesarticlePhysicsQC1-999ElectronicsTK7800-8360ENMoldavian Journal of the Physical Sciences, Vol 12, Iss 1-2, Pp 9-17 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999 Electronics TK7800-8360
spellingShingle	Physics QC1-999 Electronics TK7800-8360 Stamov, Ivan Sîrbu, Nicolae Korzun, B Ursachi, Veaceslav Dorogan, Andrei Maşnic, Aliona Calculation of optical functions of exciton and electron transitions by means of kramers-kronig relations in CuAlS2 crystals
description	Excitonic reflection spectra of CuAlS2 crystals were measured at a temperature of 10 K for E\|\|c and Ec polarizations. The shapes of the lines of ground states of Г4 and Г5 excitons were calculated by means of the Kramers-Kronig relations. Exciton parameters and the values of energetic gaps (Г7Г6, Г6Г6, and Г7Г6) were determined. Optical reflection spectra in the depth of absorption band (Еg - 6 eV) were measured at 80 K for E\|\|c and Ec polarizations. Optical functions n, k, ε1, ε2, d2ε1/dE2 and d2ε2/dE2 were calculated for both polarizations. The revealed peculiarities are ascribed to electronic transitions in the frame of theoretical calculations of the band structure for crystals from this group.
format	article
author	Stamov, Ivan Sîrbu, Nicolae Korzun, B Ursachi, Veaceslav Dorogan, Andrei Maşnic, Aliona
author_facet	Stamov, Ivan Sîrbu, Nicolae Korzun, B Ursachi, Veaceslav Dorogan, Andrei Maşnic, Aliona
author_sort	Stamov, Ivan
title	Calculation of optical functions of exciton and electron transitions by means of kramers-kronig relations in CuAlS2 crystals
title_short	Calculation of optical functions of exciton and electron transitions by means of kramers-kronig relations in CuAlS2 crystals
title_full	Calculation of optical functions of exciton and electron transitions by means of kramers-kronig relations in CuAlS2 crystals
title_fullStr	Calculation of optical functions of exciton and electron transitions by means of kramers-kronig relations in CuAlS2 crystals
title_full_unstemmed	Calculation of optical functions of exciton and electron transitions by means of kramers-kronig relations in CuAlS2 crystals
title_sort	calculation of optical functions of exciton and electron transitions by means of kramers-kronig relations in cuals2 crystals
publisher	D.Ghitu Institute of Electronic Engineering and Nanotechnologies
publishDate	2013
url	https://doaj.org/article/1e51a79f19c8414db2cd66da68b9e1a3
work_keys_str_mv	AT stamovivan calculationofopticalfunctionsofexcitonandelectrontransitionsbymeansofkramerskronigrelationsincuals2crystals AT sirbunicolae calculationofopticalfunctionsofexcitonandelectrontransitionsbymeansofkramerskronigrelationsincuals2crystals AT korzunb calculationofopticalfunctionsofexcitonandelectrontransitionsbymeansofkramerskronigrelationsincuals2crystals AT ursachiveaceslav calculationofopticalfunctionsofexcitonandelectrontransitionsbymeansofkramerskronigrelationsincuals2crystals AT doroganandrei calculationofopticalfunctionsofexcitonandelectrontransitionsbymeansofkramerskronigrelationsincuals2crystals AT masnicaliona calculationofopticalfunctionsofexcitonandelectrontransitionsbymeansofkramerskronigrelationsincuals2crystals
_version_	1718419289281658880

Calculation of optical functions of exciton and electron transitions by means of kramers-kronig relations in CuAlS2 crystals

Ejemplares similares