Inhomogeneous strain-induced half-metallicity in bent zigzag graphene nanoribbons

Half-metallicity: Strain-induced spin-splitting in graphene nanoribbons Inhomogenous strain could cause the charge carriers in zigzag graphene nanoribbons to become fully spin-polarized. If a material is conducting for one spin orientation, whilst being insulating for the other, then it is said to b...

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Autores principales:	Dong-Bo Zhang, Su-Huai Wei
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Materials of engineering and construction. Mechanics of materials TA401-492 Computer software QA76.75-76.765
Acceso en línea:	https://doaj.org/article/6322156624de4a4c8d7164cafde66743
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spelling	oai:doaj.org-article:6322156624de4a4c8d7164cafde667432021-12-02T11:51:10ZInhomogeneous strain-induced half-metallicity in bent zigzag graphene nanoribbons10.1038/s41524-017-0036-92057-3960https://doaj.org/article/6322156624de4a4c8d7164cafde667432017-08-01T00:00:00Zhttps://doi.org/10.1038/s41524-017-0036-9https://doaj.org/toc/2057-3960Half-metallicity: Strain-induced spin-splitting in graphene nanoribbons Inhomogenous strain could cause the charge carriers in zigzag graphene nanoribbons to become fully spin-polarized. If a material is conducting for one spin orientation, whilst being insulating for the other, then it is said to be half-metallic. Such materials could be used in a range of spintronic applications; whilst half-metallicity has been seen in bulk systems, realising half-metallicity in low-dimensional materials is challenging. Using the theoretical method of generalized Bloch theorem, Dong-Bo Zhang and Su-Huai Wei from Beijing Computational Science Research Center show that in-plane bending can be used to induce half-metallicity in zigzag graphene nanoribbons. When graphene nanoribbons are bent, inhomogenous strains are created that lead to a spin-splitting of the electronic states, which gives rise to half-metallicity. This strain engineering approach could be extended to other two-dimensional materials, enabling the design of nanoscale spintronics devices.Dong-Bo ZhangSu-Huai WeiNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492Computer softwareQA76.75-76.765ENnpj Computational Materials, Vol 3, Iss 1, Pp 1-5 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Materials of engineering and construction. Mechanics of materials TA401-492 Computer software QA76.75-76.765
spellingShingle	Materials of engineering and construction. Mechanics of materials TA401-492 Computer software QA76.75-76.765 Dong-Bo Zhang Su-Huai Wei Inhomogeneous strain-induced half-metallicity in bent zigzag graphene nanoribbons
description	Half-metallicity: Strain-induced spin-splitting in graphene nanoribbons Inhomogenous strain could cause the charge carriers in zigzag graphene nanoribbons to become fully spin-polarized. If a material is conducting for one spin orientation, whilst being insulating for the other, then it is said to be half-metallic. Such materials could be used in a range of spintronic applications; whilst half-metallicity has been seen in bulk systems, realising half-metallicity in low-dimensional materials is challenging. Using the theoretical method of generalized Bloch theorem, Dong-Bo Zhang and Su-Huai Wei from Beijing Computational Science Research Center show that in-plane bending can be used to induce half-metallicity in zigzag graphene nanoribbons. When graphene nanoribbons are bent, inhomogenous strains are created that lead to a spin-splitting of the electronic states, which gives rise to half-metallicity. This strain engineering approach could be extended to other two-dimensional materials, enabling the design of nanoscale spintronics devices.
format	article
author	Dong-Bo Zhang Su-Huai Wei
author_facet	Dong-Bo Zhang Su-Huai Wei
author_sort	Dong-Bo Zhang
title	Inhomogeneous strain-induced half-metallicity in bent zigzag graphene nanoribbons
title_short	Inhomogeneous strain-induced half-metallicity in bent zigzag graphene nanoribbons
title_full	Inhomogeneous strain-induced half-metallicity in bent zigzag graphene nanoribbons
title_fullStr	Inhomogeneous strain-induced half-metallicity in bent zigzag graphene nanoribbons
title_full_unstemmed	Inhomogeneous strain-induced half-metallicity in bent zigzag graphene nanoribbons
title_sort	inhomogeneous strain-induced half-metallicity in bent zigzag graphene nanoribbons
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/6322156624de4a4c8d7164cafde66743
work_keys_str_mv	AT dongbozhang inhomogeneousstraininducedhalfmetallicityinbentzigzaggraphenenanoribbons AT suhuaiwei inhomogeneousstraininducedhalfmetallicityinbentzigzaggraphenenanoribbons
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Inhomogeneous strain-induced half-metallicity in bent zigzag graphene nanoribbons

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