Two dimensional V2O3 and its experimental feasibility as robust room-temperature magnetic Chern insulator

Abstract The possibility of dissipationless chiral edge states without the need of an external magnetic field in the quantum anomalous Hall effect (QAHE) offers a great potential in electronic/spintronic applications. The biggest hurdle for the realization of a room-temperature magnetic Chern insula...

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Autores principales:	Simon Mellaerts, Ruishen Meng, Mariela Menghini, Valeri Afanasiev, Jin Won Seo, Michel Houssa, Jean-Pierre Locquet
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/f44ec66c14cf4b31bd2f98d665c9d1d2
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spelling	oai:doaj.org-article:f44ec66c14cf4b31bd2f98d665c9d1d22021-12-02T18:34:00ZTwo dimensional V2O3 and its experimental feasibility as robust room-temperature magnetic Chern insulator10.1038/s41699-021-00245-w2397-7132https://doaj.org/article/f44ec66c14cf4b31bd2f98d665c9d1d22021-07-01T00:00:00Zhttps://doi.org/10.1038/s41699-021-00245-whttps://doaj.org/toc/2397-7132Abstract The possibility of dissipationless chiral edge states without the need of an external magnetic field in the quantum anomalous Hall effect (QAHE) offers a great potential in electronic/spintronic applications. The biggest hurdle for the realization of a room-temperature magnetic Chern insulator is to find a structurally stable material with a sufficiently large energy gap and Curie temperature that can be easily implemented in electronic devices. This work based on first-principle methods shows that a single atomic layer of V2O3 with honeycomb–kagome (HK) lattice is structurally stable with a spin-polarized Dirac cone which gives rise to a room-temperature QAHE by the existence of an atomic on-site spin–orbit coupling (SOC). Moreover, by a strain and substrate study, it was found that the quantum anomalous Hall system is robust against small deformations and can be supported by a graphene substrate.Simon MellaertsRuishen MengMariela MenghiniValeri AfanasievJin Won SeoMichel HoussaJean-Pierre LocquetNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492ChemistryQD1-999ENnpj 2D Materials and Applications, Vol 5, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999
spellingShingle	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999 Simon Mellaerts Ruishen Meng Mariela Menghini Valeri Afanasiev Jin Won Seo Michel Houssa Jean-Pierre Locquet Two dimensional V2O3 and its experimental feasibility as robust room-temperature magnetic Chern insulator
description	Abstract The possibility of dissipationless chiral edge states without the need of an external magnetic field in the quantum anomalous Hall effect (QAHE) offers a great potential in electronic/spintronic applications. The biggest hurdle for the realization of a room-temperature magnetic Chern insulator is to find a structurally stable material with a sufficiently large energy gap and Curie temperature that can be easily implemented in electronic devices. This work based on first-principle methods shows that a single atomic layer of V2O3 with honeycomb–kagome (HK) lattice is structurally stable with a spin-polarized Dirac cone which gives rise to a room-temperature QAHE by the existence of an atomic on-site spin–orbit coupling (SOC). Moreover, by a strain and substrate study, it was found that the quantum anomalous Hall system is robust against small deformations and can be supported by a graphene substrate.
format	article
author	Simon Mellaerts Ruishen Meng Mariela Menghini Valeri Afanasiev Jin Won Seo Michel Houssa Jean-Pierre Locquet
author_facet	Simon Mellaerts Ruishen Meng Mariela Menghini Valeri Afanasiev Jin Won Seo Michel Houssa Jean-Pierre Locquet
author_sort	Simon Mellaerts
title	Two dimensional V2O3 and its experimental feasibility as robust room-temperature magnetic Chern insulator
title_short	Two dimensional V2O3 and its experimental feasibility as robust room-temperature magnetic Chern insulator
title_full	Two dimensional V2O3 and its experimental feasibility as robust room-temperature magnetic Chern insulator
title_fullStr	Two dimensional V2O3 and its experimental feasibility as robust room-temperature magnetic Chern insulator
title_full_unstemmed	Two dimensional V2O3 and its experimental feasibility as robust room-temperature magnetic Chern insulator
title_sort	two dimensional v2o3 and its experimental feasibility as robust room-temperature magnetic chern insulator
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/f44ec66c14cf4b31bd2f98d665c9d1d2
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Two dimensional V2O3 and its experimental feasibility as robust room-temperature magnetic Chern insulator

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