Dramatically Enhanced Spin Dynamo with Plasmonic Diabolo Cavity

Abstract The applications of spin dynamos, which could potentially power complex nanoscopic devices, have so far been limited owing to their extremely low energy conversion efficiencies. Here, we present a unique plasmonic diabolo cavity (PDC) that dramatically improves the spin rectification signal...

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Autores principales:	Peng Gou, Jie Qian, Fuchun Xi, Yuexin Zou, Jun Cao, Haochi Yu, Ziyi Zhao, Le Yang, Jie Xu, Hengliang Wang, Lijian Zhang, Zhenghua An
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a89af45697dd4f6a9d7d2861e45872cf
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spelling	oai:doaj.org-article:a89af45697dd4f6a9d7d2861e45872cf2021-12-02T16:06:25ZDramatically Enhanced Spin Dynamo with Plasmonic Diabolo Cavity10.1038/s41598-017-05634-02045-2322https://doaj.org/article/a89af45697dd4f6a9d7d2861e45872cf2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05634-0https://doaj.org/toc/2045-2322Abstract The applications of spin dynamos, which could potentially power complex nanoscopic devices, have so far been limited owing to their extremely low energy conversion efficiencies. Here, we present a unique plasmonic diabolo cavity (PDC) that dramatically improves the spin rectification signal (enhancement of more than three orders of magnitude) under microwave excitation; further, it enables an energy conversion efficiency of up to ~0.69 mV/mW, compared with ~0.27 μV/mW without a PDC. This remarkable improvement arises from the simultaneous enhancement of the microwave electric field (~13-fold) and the magnetic field (~195-fold), which cooperate in the spin precession process generates photovoltage (PV) efficiently under ferromagnetic resonance (FMR) conditions. The interplay of the microwave electromagnetic resonance and the ferromagnetic resonance originates from a hybridized mode based on the plasmonic resonance of the diabolo structure and Fabry-Perot-like modes in the PDC. Our work sheds light on how more efficient spin dynamo devices for practical applications could be realized and paves the way for future studies utilizing both artificial and natural magnetism for applications in many disciplines, such as for the design of future efficient wireless energy conversion devices, high frequent resonant spintronic devices, and magnonic metamaterials.Peng GouJie QianFuchun XiYuexin ZouJun CaoHaochi YuZiyi ZhaoLe YangJie XuHengliang WangLijian ZhangZhenghua AnNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Peng Gou Jie Qian Fuchun Xi Yuexin Zou Jun Cao Haochi Yu Ziyi Zhao Le Yang Jie Xu Hengliang Wang Lijian Zhang Zhenghua An Dramatically Enhanced Spin Dynamo with Plasmonic Diabolo Cavity
description	Abstract The applications of spin dynamos, which could potentially power complex nanoscopic devices, have so far been limited owing to their extremely low energy conversion efficiencies. Here, we present a unique plasmonic diabolo cavity (PDC) that dramatically improves the spin rectification signal (enhancement of more than three orders of magnitude) under microwave excitation; further, it enables an energy conversion efficiency of up to ~0.69 mV/mW, compared with ~0.27 μV/mW without a PDC. This remarkable improvement arises from the simultaneous enhancement of the microwave electric field (~13-fold) and the magnetic field (~195-fold), which cooperate in the spin precession process generates photovoltage (PV) efficiently under ferromagnetic resonance (FMR) conditions. The interplay of the microwave electromagnetic resonance and the ferromagnetic resonance originates from a hybridized mode based on the plasmonic resonance of the diabolo structure and Fabry-Perot-like modes in the PDC. Our work sheds light on how more efficient spin dynamo devices for practical applications could be realized and paves the way for future studies utilizing both artificial and natural magnetism for applications in many disciplines, such as for the design of future efficient wireless energy conversion devices, high frequent resonant spintronic devices, and magnonic metamaterials.
format	article
author	Peng Gou Jie Qian Fuchun Xi Yuexin Zou Jun Cao Haochi Yu Ziyi Zhao Le Yang Jie Xu Hengliang Wang Lijian Zhang Zhenghua An
author_facet	Peng Gou Jie Qian Fuchun Xi Yuexin Zou Jun Cao Haochi Yu Ziyi Zhao Le Yang Jie Xu Hengliang Wang Lijian Zhang Zhenghua An
author_sort	Peng Gou
title	Dramatically Enhanced Spin Dynamo with Plasmonic Diabolo Cavity
title_short	Dramatically Enhanced Spin Dynamo with Plasmonic Diabolo Cavity
title_full	Dramatically Enhanced Spin Dynamo with Plasmonic Diabolo Cavity
title_fullStr	Dramatically Enhanced Spin Dynamo with Plasmonic Diabolo Cavity
title_full_unstemmed	Dramatically Enhanced Spin Dynamo with Plasmonic Diabolo Cavity
title_sort	dramatically enhanced spin dynamo with plasmonic diabolo cavity
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/a89af45697dd4f6a9d7d2861e45872cf
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Dramatically Enhanced Spin Dynamo with Plasmonic Diabolo Cavity

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