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Quantum Anomalous Hall Effect in Graphene-based Heterostructure
Quantum anomalous Hall (QAH) effect, with potential applications in low-power-consumption electronics, is predicted in the heterostructure of graphene on the (001) surface of a real antiferromagnetic insulator RbMnCl(3), based on density-functional theory and Wannier function methods. Due to the int...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4448525/ https://www.ncbi.nlm.nih.gov/pubmed/26024508 http://dx.doi.org/10.1038/srep10629 |
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author | Zhang, Jiayong Zhao, Bao Yao, Yugui Yang, Zhongqin |
author_facet | Zhang, Jiayong Zhao, Bao Yao, Yugui Yang, Zhongqin |
author_sort | Zhang, Jiayong |
collection | PubMed |
description | Quantum anomalous Hall (QAH) effect, with potential applications in low-power-consumption electronics, is predicted in the heterostructure of graphene on the (001) surface of a real antiferromagnetic insulator RbMnCl(3), based on density-functional theory and Wannier function methods. Due to the interactions from the substrate, a much large exchange field (about 280 meV) and an enhanced Rashba spin-orbit coupling are induced in graphene, leading to a topologically nontrivial QAH gap opened in the system. The avenues of enhancing the nontrivial gap are also proposed, from which nearly a gap one order large is achieved. Our work demonstrates that this graphene-based heterostructure is an appropriate candidate to be employed to experimentally observe the QAH effect and explore the promising applications. |
format | Online Article Text |
id | pubmed-4448525 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-44485252015-06-10 Quantum Anomalous Hall Effect in Graphene-based Heterostructure Zhang, Jiayong Zhao, Bao Yao, Yugui Yang, Zhongqin Sci Rep Article Quantum anomalous Hall (QAH) effect, with potential applications in low-power-consumption electronics, is predicted in the heterostructure of graphene on the (001) surface of a real antiferromagnetic insulator RbMnCl(3), based on density-functional theory and Wannier function methods. Due to the interactions from the substrate, a much large exchange field (about 280 meV) and an enhanced Rashba spin-orbit coupling are induced in graphene, leading to a topologically nontrivial QAH gap opened in the system. The avenues of enhancing the nontrivial gap are also proposed, from which nearly a gap one order large is achieved. Our work demonstrates that this graphene-based heterostructure is an appropriate candidate to be employed to experimentally observe the QAH effect and explore the promising applications. Nature Publishing Group 2015-05-29 /pmc/articles/PMC4448525/ /pubmed/26024508 http://dx.doi.org/10.1038/srep10629 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Zhang, Jiayong Zhao, Bao Yao, Yugui Yang, Zhongqin Quantum Anomalous Hall Effect in Graphene-based Heterostructure |
title | Quantum Anomalous Hall Effect in Graphene-based Heterostructure |
title_full | Quantum Anomalous Hall Effect in Graphene-based Heterostructure |
title_fullStr | Quantum Anomalous Hall Effect in Graphene-based Heterostructure |
title_full_unstemmed | Quantum Anomalous Hall Effect in Graphene-based Heterostructure |
title_short | Quantum Anomalous Hall Effect in Graphene-based Heterostructure |
title_sort | quantum anomalous hall effect in graphene-based heterostructure |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4448525/ https://www.ncbi.nlm.nih.gov/pubmed/26024508 http://dx.doi.org/10.1038/srep10629 |
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