Multiple thermal spin transport performances of graphene nanoribbon heterojuction co-doped with Nitrogen and Boron

Abstract Graphene nanoribbon is a popular material in spintronics owing to its unique electronic properties. Here, we propose a novel spin caloritronics device based on zigzag graphene nanoribbon (ZGNR), which is a heterojunction consisting of a pure single-hydrogen-terminated ZGNR and one doped wit...

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Autores principales:	Hai Huang, Guoying Gao, Huahua Fu, Anmin Zheng, Fei Zou, Guangqian Ding, Kailun Yao
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e0b1e5a7f9334a8ba6f5ad61f748e44a
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spelling	oai:doaj.org-article:e0b1e5a7f9334a8ba6f5ad61f748e44a2021-12-02T15:05:31ZMultiple thermal spin transport performances of graphene nanoribbon heterojuction co-doped with Nitrogen and Boron10.1038/s41598-017-04287-32045-2322https://doaj.org/article/e0b1e5a7f9334a8ba6f5ad61f748e44a2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04287-3https://doaj.org/toc/2045-2322Abstract Graphene nanoribbon is a popular material in spintronics owing to its unique electronic properties. Here, we propose a novel spin caloritronics device based on zigzag graphene nanoribbon (ZGNR), which is a heterojunction consisting of a pure single-hydrogen-terminated ZGNR and one doped with nitrogen and boron. Using the density functional theory combined with the non-equilibrium Green’s function, we investigate the thermal spin transport properties of the heterojunction under different magnetic configurations only by a temperature gradient without an external gate or bias voltage. Our results indicate that thermally-induced spin polarized currents can be tuned by switching the magnetic configurations, resulting in a perfect thermal colossal magnetoresistance effect. The heterojunctions with different magnetic configurations exhibit a variety of excellent transport characteristics, including the spin-Seebeck effect, the spin-filtering effect, the temperature switching effect, the negative differential thermal resistance effect and the spin-Seebeck diode feature, which makes the heterojunction a promising candidate for high-efficiently multifunctional spin caloritronic applications.Hai HuangGuoying GaoHuahua FuAnmin ZhengFei ZouGuangqian DingKailun YaoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hai Huang Guoying Gao Huahua Fu Anmin Zheng Fei Zou Guangqian Ding Kailun Yao Multiple thermal spin transport performances of graphene nanoribbon heterojuction co-doped with Nitrogen and Boron
description	Abstract Graphene nanoribbon is a popular material in spintronics owing to its unique electronic properties. Here, we propose a novel spin caloritronics device based on zigzag graphene nanoribbon (ZGNR), which is a heterojunction consisting of a pure single-hydrogen-terminated ZGNR and one doped with nitrogen and boron. Using the density functional theory combined with the non-equilibrium Green’s function, we investigate the thermal spin transport properties of the heterojunction under different magnetic configurations only by a temperature gradient without an external gate or bias voltage. Our results indicate that thermally-induced spin polarized currents can be tuned by switching the magnetic configurations, resulting in a perfect thermal colossal magnetoresistance effect. The heterojunctions with different magnetic configurations exhibit a variety of excellent transport characteristics, including the spin-Seebeck effect, the spin-filtering effect, the temperature switching effect, the negative differential thermal resistance effect and the spin-Seebeck diode feature, which makes the heterojunction a promising candidate for high-efficiently multifunctional spin caloritronic applications.
format	article
author	Hai Huang Guoying Gao Huahua Fu Anmin Zheng Fei Zou Guangqian Ding Kailun Yao
author_facet	Hai Huang Guoying Gao Huahua Fu Anmin Zheng Fei Zou Guangqian Ding Kailun Yao
author_sort	Hai Huang
title	Multiple thermal spin transport performances of graphene nanoribbon heterojuction co-doped with Nitrogen and Boron
title_short	Multiple thermal spin transport performances of graphene nanoribbon heterojuction co-doped with Nitrogen and Boron
title_full	Multiple thermal spin transport performances of graphene nanoribbon heterojuction co-doped with Nitrogen and Boron
title_fullStr	Multiple thermal spin transport performances of graphene nanoribbon heterojuction co-doped with Nitrogen and Boron
title_full_unstemmed	Multiple thermal spin transport performances of graphene nanoribbon heterojuction co-doped with Nitrogen and Boron
title_sort	multiple thermal spin transport performances of graphene nanoribbon heterojuction co-doped with nitrogen and boron
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/e0b1e5a7f9334a8ba6f5ad61f748e44a
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Multiple thermal spin transport performances of graphene nanoribbon heterojuction co-doped with Nitrogen and Boron

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