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Enhanced Spin Thermopower in Phosphorene Nanoribbons via Edge-State Modifications

We investigated spin-dependent thermoelectric transport in zigzag phosphorene nanoribbons with a ferromagnetic stripe. We explored the possibility to enhance the spin thermopower via modifications of the edge states in zigzag ribbons. Two methods are proposed to modulate the edge transport: one is a...

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Detalles Bibliográficos
Autores principales: Ou, Junheng, Zhang, Qingtian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9319201/
https://www.ncbi.nlm.nih.gov/pubmed/35889576
http://dx.doi.org/10.3390/nano12142350
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author Ou, Junheng
Zhang, Qingtian
author_facet Ou, Junheng
Zhang, Qingtian
author_sort Ou, Junheng
collection PubMed
description We investigated spin-dependent thermoelectric transport in zigzag phosphorene nanoribbons with a ferromagnetic stripe. We explored the possibility to enhance the spin thermopower via modifications of the edge states in zigzag ribbons. Two methods are proposed to modulate the edge transport: one is applying gate voltages on the edges; the other is including notches on the ribbon edges. The transport gap is enlarged by the edge-state modifications, which enhance the charge and spin Seebeck coefficients almost twofold. Our results suggest phosphorene to be a promising material for thermoelectric applications and open a possibility to design a tunable spin-thermoelectric device.
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spelling pubmed-93192012022-07-27 Enhanced Spin Thermopower in Phosphorene Nanoribbons via Edge-State Modifications Ou, Junheng Zhang, Qingtian Nanomaterials (Basel) Article We investigated spin-dependent thermoelectric transport in zigzag phosphorene nanoribbons with a ferromagnetic stripe. We explored the possibility to enhance the spin thermopower via modifications of the edge states in zigzag ribbons. Two methods are proposed to modulate the edge transport: one is applying gate voltages on the edges; the other is including notches on the ribbon edges. The transport gap is enlarged by the edge-state modifications, which enhance the charge and spin Seebeck coefficients almost twofold. Our results suggest phosphorene to be a promising material for thermoelectric applications and open a possibility to design a tunable spin-thermoelectric device. MDPI 2022-07-09 /pmc/articles/PMC9319201/ /pubmed/35889576 http://dx.doi.org/10.3390/nano12142350 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ou, Junheng
Zhang, Qingtian
Enhanced Spin Thermopower in Phosphorene Nanoribbons via Edge-State Modifications
title Enhanced Spin Thermopower in Phosphorene Nanoribbons via Edge-State Modifications
title_full Enhanced Spin Thermopower in Phosphorene Nanoribbons via Edge-State Modifications
title_fullStr Enhanced Spin Thermopower in Phosphorene Nanoribbons via Edge-State Modifications
title_full_unstemmed Enhanced Spin Thermopower in Phosphorene Nanoribbons via Edge-State Modifications
title_short Enhanced Spin Thermopower in Phosphorene Nanoribbons via Edge-State Modifications
title_sort enhanced spin thermopower in phosphorene nanoribbons via edge-state modifications
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9319201/
https://www.ncbi.nlm.nih.gov/pubmed/35889576
http://dx.doi.org/10.3390/nano12142350
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