Landau quantization of two-dimensional heavy holes, energy spectrum of magnetoexcitons, and optical quantum transitions

The Landau quantization of the two-dimensional (2D) heavy holes, its influence on the energy spectrum of 2D magnetoexcitons, and their optical orientation are studied. The Hamiltonian of the heavy holes is written in a two-band model taking into account the Rashba spin-orbit coupling (RSOC) with two...

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Autores principales:	Podlesnîi, Igor, Moscalenco, Sveatoslav, Kiseliov, Anton, Shutova (Gherciu), Liudmila
Formato:	article
Lenguaje:	EN
Publicado:	D.Ghitu Institute of Electronic Engineering and Nanotechnologies 2012
Materias:	Physics QC1-999 Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/34b4f3c041e740898cd2ff35841a5d73
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spelling	oai:doaj.org-article:34b4f3c041e740898cd2ff35841a5d732021-11-21T12:01:12ZLandau quantization of two-dimensional heavy holes, energy spectrum of magnetoexcitons, and optical quantum transitions2537-63651810-648Xhttps://doaj.org/article/34b4f3c041e740898cd2ff35841a5d732012-10-01T00:00:00Zhttps://mjps.nanotech.md/archive/2012/article/21327https://doaj.org/toc/1810-648Xhttps://doaj.org/toc/2537-6365The Landau quantization of the two-dimensional (2D) heavy holes, its influence on the energy spectrum of 2D magnetoexcitons, and their optical orientation are studied. The Hamiltonian of the heavy holes is written in a two-band model taking into account the Rashba spin-orbit coupling (RSOC) with two spin projections, but with nonparabolic dispersion law and third order chirality terms. The most Landau levels, except three with m = 0, 1, 2, are characterized by two quantum numbers m - 3 and m for m > 3 for two spin projections, respectively. The difference between them is determined by the third order chirality. Four lowest Landau levels (LLLs) for heavy holes were combined with two LLLs for conduction electron, which were taken the same as they were deduced by Rashba in his theory of spin-orbit coupling (SOC) based on the initial parabolic dispersion law and first order chirality terms. As a result of these combinations, eight 2D magnetoexciton states were formed. Their energy spectrum and the selection rules for the quantum transitions from the ground state of the crystal to exciton states were determined. On this base, optical orientation effects, such as spin polarization and magnetoexciton alignment, are discussed.Podlesnîi, IgorMoscalenco, SveatoslavKiseliov, AntonShutova (Gherciu), LiudmilaD.Ghitu Institute of Electronic Engineering and NanotechnologiesarticlePhysicsQC1-999ElectronicsTK7800-8360ENMoldavian Journal of the Physical Sciences, Vol 11, Iss 3, Pp 174-183 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999 Electronics TK7800-8360
spellingShingle	Physics QC1-999 Electronics TK7800-8360 Podlesnîi, Igor Moscalenco, Sveatoslav Kiseliov, Anton Shutova (Gherciu), Liudmila Landau quantization of two-dimensional heavy holes, energy spectrum of magnetoexcitons, and optical quantum transitions
description	The Landau quantization of the two-dimensional (2D) heavy holes, its influence on the energy spectrum of 2D magnetoexcitons, and their optical orientation are studied. The Hamiltonian of the heavy holes is written in a two-band model taking into account the Rashba spin-orbit coupling (RSOC) with two spin projections, but with nonparabolic dispersion law and third order chirality terms. The most Landau levels, except three with m = 0, 1, 2, are characterized by two quantum numbers m - 3 and m for m > 3 for two spin projections, respectively. The difference between them is determined by the third order chirality. Four lowest Landau levels (LLLs) for heavy holes were combined with two LLLs for conduction electron, which were taken the same as they were deduced by Rashba in his theory of spin-orbit coupling (SOC) based on the initial parabolic dispersion law and first order chirality terms. As a result of these combinations, eight 2D magnetoexciton states were formed. Their energy spectrum and the selection rules for the quantum transitions from the ground state of the crystal to exciton states were determined. On this base, optical orientation effects, such as spin polarization and magnetoexciton alignment, are discussed.
format	article
author	Podlesnîi, Igor Moscalenco, Sveatoslav Kiseliov, Anton Shutova (Gherciu), Liudmila
author_facet	Podlesnîi, Igor Moscalenco, Sveatoslav Kiseliov, Anton Shutova (Gherciu), Liudmila
author_sort	Podlesnîi, Igor
title	Landau quantization of two-dimensional heavy holes, energy spectrum of magnetoexcitons, and optical quantum transitions
title_short	Landau quantization of two-dimensional heavy holes, energy spectrum of magnetoexcitons, and optical quantum transitions
title_full	Landau quantization of two-dimensional heavy holes, energy spectrum of magnetoexcitons, and optical quantum transitions
title_fullStr	Landau quantization of two-dimensional heavy holes, energy spectrum of magnetoexcitons, and optical quantum transitions
title_full_unstemmed	Landau quantization of two-dimensional heavy holes, energy spectrum of magnetoexcitons, and optical quantum transitions
title_sort	landau quantization of two-dimensional heavy holes, energy spectrum of magnetoexcitons, and optical quantum transitions
publisher	D.Ghitu Institute of Electronic Engineering and Nanotechnologies
publishDate	2012
url	https://doaj.org/article/34b4f3c041e740898cd2ff35841a5d73
work_keys_str_mv	AT podlesniiigor landauquantizationoftwodimensionalheavyholesenergyspectrumofmagnetoexcitonsandopticalquantumtransitions AT moscalencosveatoslav landauquantizationoftwodimensionalheavyholesenergyspectrumofmagnetoexcitonsandopticalquantumtransitions AT kiseliovanton landauquantizationoftwodimensionalheavyholesenergyspectrumofmagnetoexcitonsandopticalquantumtransitions AT shutovagherciuliudmila landauquantizationoftwodimensionalheavyholesenergyspectrumofmagnetoexcitonsandopticalquantumtransitions
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Landau quantization of two-dimensional heavy holes, energy spectrum of magnetoexcitons, and optical quantum transitions

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