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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...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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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. |
format | Online Article Text |
id | pubmed-9319201 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT oujunheng enhancedspinthermopowerinphosphorenenanoribbonsviaedgestatemodifications AT zhangqingtian enhancedspinthermopowerinphosphorenenanoribbonsviaedgestatemodifications |