Rashba Spin Splitting in HgCdTe Quantum Wells with Inverted and Normal Band Structures

In quantum wells (QWs) formed in HgCdTe/CdHgTe heterosystems with a variable composition of Cd(Hg), Shubnikov-de-Haas (SdH) oscillations are investigated to characterize the Rashba-type spin-orbit coupling in QWs with both a normal and inverted band structure. Several methods of extracting the Rashb...

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Autores principales: Gudina, Svetlana V., Neverov, Vladimir N., Popov, Mikhail R., Turutkin, Konstantin V., Podgornykh, Sergey M., Shelushinina, Nina G., Yakunin, Mikhail V., Mikhailov, Nikolay N., Dvoretsky, Sergey A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9000740/
https://www.ncbi.nlm.nih.gov/pubmed/35407355
http://dx.doi.org/10.3390/nano12071238
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author Gudina, Svetlana V.
Neverov, Vladimir N.
Popov, Mikhail R.
Turutkin, Konstantin V.
Podgornykh, Sergey M.
Shelushinina, Nina G.
Yakunin, Mikhail V.
Mikhailov, Nikolay N.
Dvoretsky, Sergey A.
author_facet Gudina, Svetlana V.
Neverov, Vladimir N.
Popov, Mikhail R.
Turutkin, Konstantin V.
Podgornykh, Sergey M.
Shelushinina, Nina G.
Yakunin, Mikhail V.
Mikhailov, Nikolay N.
Dvoretsky, Sergey A.
author_sort Gudina, Svetlana V.
collection PubMed
description In quantum wells (QWs) formed in HgCdTe/CdHgTe heterosystems with a variable composition of Cd(Hg), Shubnikov-de-Haas (SdH) oscillations are investigated to characterize the Rashba-type spin-orbit coupling in QWs with both a normal and inverted band structure. Several methods of extracting the Rashba spin-splitting at zero magnetic field and their magnetic field dependences from the beatings of SdH oscillations are used for greater reliability. The large and similar Rashba splitting (25–27 meV) is found for different kinds of spectrum, explained by a significant fraction of the p-type wave functions, in both the E1 subband of the sample with a normal spectrum and the H1 subband for the sample with an inverted one.
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spelling pubmed-90007402022-04-12 Rashba Spin Splitting in HgCdTe Quantum Wells with Inverted and Normal Band Structures Gudina, Svetlana V. Neverov, Vladimir N. Popov, Mikhail R. Turutkin, Konstantin V. Podgornykh, Sergey M. Shelushinina, Nina G. Yakunin, Mikhail V. Mikhailov, Nikolay N. Dvoretsky, Sergey A. Nanomaterials (Basel) Article In quantum wells (QWs) formed in HgCdTe/CdHgTe heterosystems with a variable composition of Cd(Hg), Shubnikov-de-Haas (SdH) oscillations are investigated to characterize the Rashba-type spin-orbit coupling in QWs with both a normal and inverted band structure. Several methods of extracting the Rashba spin-splitting at zero magnetic field and their magnetic field dependences from the beatings of SdH oscillations are used for greater reliability. The large and similar Rashba splitting (25–27 meV) is found for different kinds of spectrum, explained by a significant fraction of the p-type wave functions, in both the E1 subband of the sample with a normal spectrum and the H1 subband for the sample with an inverted one. MDPI 2022-04-06 /pmc/articles/PMC9000740/ /pubmed/35407355 http://dx.doi.org/10.3390/nano12071238 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Gudina, Svetlana V.
Neverov, Vladimir N.
Popov, Mikhail R.
Turutkin, Konstantin V.
Podgornykh, Sergey M.
Shelushinina, Nina G.
Yakunin, Mikhail V.
Mikhailov, Nikolay N.
Dvoretsky, Sergey A.
Rashba Spin Splitting in HgCdTe Quantum Wells with Inverted and Normal Band Structures
title Rashba Spin Splitting in HgCdTe Quantum Wells with Inverted and Normal Band Structures
title_full Rashba Spin Splitting in HgCdTe Quantum Wells with Inverted and Normal Band Structures
title_fullStr Rashba Spin Splitting in HgCdTe Quantum Wells with Inverted and Normal Band Structures
title_full_unstemmed Rashba Spin Splitting in HgCdTe Quantum Wells with Inverted and Normal Band Structures
title_short Rashba Spin Splitting in HgCdTe Quantum Wells with Inverted and Normal Band Structures
title_sort rashba spin splitting in hgcdte quantum wells with inverted and normal band structures
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9000740/
https://www.ncbi.nlm.nih.gov/pubmed/35407355
http://dx.doi.org/10.3390/nano12071238
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