Distinction between electron states formed at topological insulator interfaces with the trivial phase and vacuum

Abstract In this paper, we show that electron states formed in topological insulators at the interfaces topological phase–trivial phase and topological phase–vacuum may possess different properties. This is demonstrated on an example of heterostructures based on thick topological Hg1−x Cd x Te films...

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Autores principales:	A. S. Kazakov, A. V. Galeeva, A. I. Artamkin, A. V. Ikonnikov, L. I. Ryabova, S. A. Dvoretsky, N. N. Mikhailov, M. I. Bannikov, S. N. Danilov, D. R. Khokhlov
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/82a6e98253ee48408b0179fd04729b2a
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spelling	oai:doaj.org-article:82a6e98253ee48408b0179fd04729b2a2021-12-02T15:02:48ZDistinction between electron states formed at topological insulator interfaces with the trivial phase and vacuum10.1038/s41598-021-91141-22045-2322https://doaj.org/article/82a6e98253ee48408b0179fd04729b2a2021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-91141-2https://doaj.org/toc/2045-2322Abstract In this paper, we show that electron states formed in topological insulators at the interfaces topological phase–trivial phase and topological phase–vacuum may possess different properties. This is demonstrated on an example of heterostructures based on thick topological Hg1−x Cd x Te films, in which the PT-symmetric terahertz photoconductivity is observed. It is shown that the effect originates from features of the interface topological film–trivial buffer/cap layer. The PT-symmetric terahertz photoconductivity is not provided by electron states formed at the interface topological film–vacuum.A. S. KazakovA. V. GaleevaA. I. ArtamkinA. V. IkonnikovL. I. RyabovaS. A. DvoretskyN. N. MikhailovM. I. BannikovS. N. DanilovD. R. KhokhlovNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q A. S. Kazakov A. V. Galeeva A. I. Artamkin A. V. Ikonnikov L. I. Ryabova S. A. Dvoretsky N. N. Mikhailov M. I. Bannikov S. N. Danilov D. R. Khokhlov Distinction between electron states formed at topological insulator interfaces with the trivial phase and vacuum
description	Abstract In this paper, we show that electron states formed in topological insulators at the interfaces topological phase–trivial phase and topological phase–vacuum may possess different properties. This is demonstrated on an example of heterostructures based on thick topological Hg1−x Cd x Te films, in which the PT-symmetric terahertz photoconductivity is observed. It is shown that the effect originates from features of the interface topological film–trivial buffer/cap layer. The PT-symmetric terahertz photoconductivity is not provided by electron states formed at the interface topological film–vacuum.
format	article
author	A. S. Kazakov A. V. Galeeva A. I. Artamkin A. V. Ikonnikov L. I. Ryabova S. A. Dvoretsky N. N. Mikhailov M. I. Bannikov S. N. Danilov D. R. Khokhlov
author_facet	A. S. Kazakov A. V. Galeeva A. I. Artamkin A. V. Ikonnikov L. I. Ryabova S. A. Dvoretsky N. N. Mikhailov M. I. Bannikov S. N. Danilov D. R. Khokhlov
author_sort	A. S. Kazakov
title	Distinction between electron states formed at topological insulator interfaces with the trivial phase and vacuum
title_short	Distinction between electron states formed at topological insulator interfaces with the trivial phase and vacuum
title_full	Distinction between electron states formed at topological insulator interfaces with the trivial phase and vacuum
title_fullStr	Distinction between electron states formed at topological insulator interfaces with the trivial phase and vacuum
title_full_unstemmed	Distinction between electron states formed at topological insulator interfaces with the trivial phase and vacuum
title_sort	distinction between electron states formed at topological insulator interfaces with the trivial phase and vacuum
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/82a6e98253ee48408b0179fd04729b2a
work_keys_str_mv	AT askazakov distinctionbetweenelectronstatesformedattopologicalinsulatorinterfaceswiththetrivialphaseandvacuum AT avgaleeva distinctionbetweenelectronstatesformedattopologicalinsulatorinterfaceswiththetrivialphaseandvacuum AT aiartamkin distinctionbetweenelectronstatesformedattopologicalinsulatorinterfaceswiththetrivialphaseandvacuum AT avikonnikov distinctionbetweenelectronstatesformedattopologicalinsulatorinterfaceswiththetrivialphaseandvacuum AT liryabova distinctionbetweenelectronstatesformedattopologicalinsulatorinterfaceswiththetrivialphaseandvacuum AT sadvoretsky distinctionbetweenelectronstatesformedattopologicalinsulatorinterfaceswiththetrivialphaseandvacuum AT nnmikhailov distinctionbetweenelectronstatesformedattopologicalinsulatorinterfaceswiththetrivialphaseandvacuum AT mibannikov distinctionbetweenelectronstatesformedattopologicalinsulatorinterfaceswiththetrivialphaseandvacuum AT sndanilov distinctionbetweenelectronstatesformedattopologicalinsulatorinterfaceswiththetrivialphaseandvacuum AT drkhokhlov distinctionbetweenelectronstatesformedattopologicalinsulatorinterfaceswiththetrivialphaseandvacuum
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Distinction between electron states formed at topological insulator interfaces with the trivial phase and vacuum

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