Spin current distribution in antiferromagnetic zigzag graphene nanoribbons under transverse electric fields

Abstract The spin current transmission properties of narrow zigzag graphene nanoribbons (zGNRs) have been the focus of much computational research, investigating the potential application of zGNRs in spintronic devices. Doping, fuctionalization, edge modification, and external electric fields have b...

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Autores principales:	Jie Zhang, Eric P. Fahrenthold
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7e603d78aaff409ea09e02a077da489e
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spelling	oai:doaj.org-article:7e603d78aaff409ea09e02a077da489e2021-12-02T19:02:30ZSpin current distribution in antiferromagnetic zigzag graphene nanoribbons under transverse electric fields10.1038/s41598-021-96636-62045-2322https://doaj.org/article/7e603d78aaff409ea09e02a077da489e2021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96636-6https://doaj.org/toc/2045-2322Abstract The spin current transmission properties of narrow zigzag graphene nanoribbons (zGNRs) have been the focus of much computational research, investigating the potential application of zGNRs in spintronic devices. Doping, fuctionalization, edge modification, and external electric fields have been studied as methods for spin current control, and the performance of zGNRs initialized in both ferromagnetic and antiferromagnetic spin states has been modeled. Recent work has shown that precise fabrication of narrow zGNRs is possible, and has addressed long debated questions on their magnetic order and stability. This work has revived interest in the application of antiferromagnetic zGNR configurations in spintronics. A general ab initio analysis of narrow antiferromagnetic zGNR performance under a combination of bias voltage and transverse electric field loading shows that their current transmission characteristics differ sharply from those of their ferromagnetic counterparts. At relatively modest field strengths, both majority and minority spin currents react strongly to the applied field. Analysis of band gaps and current transmission pathways explains the presence of negative differential resistance effects and the development of spatially periodic electron transport structures in these nanoribbons.Jie ZhangEric P. FahrentholdNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jie Zhang Eric P. Fahrenthold Spin current distribution in antiferromagnetic zigzag graphene nanoribbons under transverse electric fields
description	Abstract The spin current transmission properties of narrow zigzag graphene nanoribbons (zGNRs) have been the focus of much computational research, investigating the potential application of zGNRs in spintronic devices. Doping, fuctionalization, edge modification, and external electric fields have been studied as methods for spin current control, and the performance of zGNRs initialized in both ferromagnetic and antiferromagnetic spin states has been modeled. Recent work has shown that precise fabrication of narrow zGNRs is possible, and has addressed long debated questions on their magnetic order and stability. This work has revived interest in the application of antiferromagnetic zGNR configurations in spintronics. A general ab initio analysis of narrow antiferromagnetic zGNR performance under a combination of bias voltage and transverse electric field loading shows that their current transmission characteristics differ sharply from those of their ferromagnetic counterparts. At relatively modest field strengths, both majority and minority spin currents react strongly to the applied field. Analysis of band gaps and current transmission pathways explains the presence of negative differential resistance effects and the development of spatially periodic electron transport structures in these nanoribbons.
format	article
author	Jie Zhang Eric P. Fahrenthold
author_facet	Jie Zhang Eric P. Fahrenthold
author_sort	Jie Zhang
title	Spin current distribution in antiferromagnetic zigzag graphene nanoribbons under transverse electric fields
title_short	Spin current distribution in antiferromagnetic zigzag graphene nanoribbons under transverse electric fields
title_full	Spin current distribution in antiferromagnetic zigzag graphene nanoribbons under transverse electric fields
title_fullStr	Spin current distribution in antiferromagnetic zigzag graphene nanoribbons under transverse electric fields
title_full_unstemmed	Spin current distribution in antiferromagnetic zigzag graphene nanoribbons under transverse electric fields
title_sort	spin current distribution in antiferromagnetic zigzag graphene nanoribbons under transverse electric fields
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/7e603d78aaff409ea09e02a077da489e
work_keys_str_mv	AT jiezhang spincurrentdistributioninantiferromagneticzigzaggraphenenanoribbonsundertransverseelectricfields AT ericpfahrenthold spincurrentdistributioninantiferromagneticzigzaggraphenenanoribbonsundertransverseelectricfields
_version_	1718377276950708224

Spin current distribution in antiferromagnetic zigzag graphene nanoribbons under transverse electric fields

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