Electronic properties of orthorhombic InI and TlI crystals taking into account the quasiparticle corrections and spin-orbit interaction

The electronic properties of InI and TlI crystals of an orthorhombic structure with a space group Cmcm are studied. Calculations of electron properties are performed on the basis of the projector augmented waves by means of the ABINIT program. Total and partial densities of electronic states are cal...

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Main Author: S.V. Syrotyuk
Format: Article
Language:English
Published: Vasyl Stefanyk Precarpathian National University 2020-12-01
Series:Фізика і хімія твердого тіла
Subjects:
Online Access:https://journals.pnu.edu.ua/index.php/pcss/article/view/4338
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author S.V. Syrotyuk
author_facet S.V. Syrotyuk
author_sort S.V. Syrotyuk
collection DOAJ
description The electronic properties of InI and TlI crystals of an orthorhombic structure with a space group Cmcm are studied. Calculations of electron properties are performed on the basis of the projector augmented waves by means of the ABINIT program. Total and partial densities of electronic states are calculated. Electron energy spectra are found with the exchange-correlation functional GGA, without and taking into account the spin-orbital interaction. It was found that the bandgap of the InI, obtained without spin-orbital interaction, is less than the experimental value by 38%, and by 42%, taking into account the latter. For the TlI crystal, the corresponding values are 27% and 39%. The bandgap found from the quasiparticle equation in the GW approximation exhibits an excellent agreement with the experimental values for both crystals.
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spelling doaj.art-3bcaa052a6984f8da1d8f0b9ba15c93b2022-12-22T04:11:59ZengVasyl Stefanyk Precarpathian National UniversityФізика і хімія твердого тіла1729-44282309-85892020-12-0121469569910.15330/pcss.21.4.695-6994338Electronic properties of orthorhombic InI and TlI crystals taking into account the quasiparticle corrections and spin-orbit interactionS.V. Syrotyuk0Lviv Polytechnic National UniversityThe electronic properties of InI and TlI crystals of an orthorhombic structure with a space group Cmcm are studied. Calculations of electron properties are performed on the basis of the projector augmented waves by means of the ABINIT program. Total and partial densities of electronic states are calculated. Electron energy spectra are found with the exchange-correlation functional GGA, without and taking into account the spin-orbital interaction. It was found that the bandgap of the InI, obtained without spin-orbital interaction, is less than the experimental value by 38%, and by 42%, taking into account the latter. For the TlI crystal, the corresponding values are 27% and 39%. The bandgap found from the quasiparticle equation in the GW approximation exhibits an excellent agreement with the experimental values for both crystals.https://journals.pnu.edu.ua/index.php/pcss/article/view/4338semiconductorspin-orbit couplinggreen’s functionenergy spectrumdos
spellingShingle S.V. Syrotyuk
Electronic properties of orthorhombic InI and TlI crystals taking into account the quasiparticle corrections and spin-orbit interaction
Фізика і хімія твердого тіла
semiconductor
spin-orbit coupling
green’s function
energy spectrum
dos
title Electronic properties of orthorhombic InI and TlI crystals taking into account the quasiparticle corrections and spin-orbit interaction
title_full Electronic properties of orthorhombic InI and TlI crystals taking into account the quasiparticle corrections and spin-orbit interaction
title_fullStr Electronic properties of orthorhombic InI and TlI crystals taking into account the quasiparticle corrections and spin-orbit interaction
title_full_unstemmed Electronic properties of orthorhombic InI and TlI crystals taking into account the quasiparticle corrections and spin-orbit interaction
title_short Electronic properties of orthorhombic InI and TlI crystals taking into account the quasiparticle corrections and spin-orbit interaction
title_sort electronic properties of orthorhombic ini and tli crystals taking into account the quasiparticle corrections and spin orbit interaction
topic semiconductor
spin-orbit coupling
green’s function
energy spectrum
dos
url https://journals.pnu.edu.ua/index.php/pcss/article/view/4338
work_keys_str_mv AT svsyrotyuk electronicpropertiesoforthorhombiciniandtlicrystalstakingintoaccountthequasiparticlecorrectionsandspinorbitinteraction