Efficient electromagnetic transducers for spin-wave devices

Abstract This paper presents a system-level efficiency analysis, a rapid design methodology, and a numerical demonstration of efficient sub-micron, spin-wave transducers in a microwave system. Applications such as Boolean spintronics, analog spin-wave-computing, and magnetic microwave circuits are e...

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Autores principales: David A. Connelly, Gyorgy Csaba, Hadrian Renaldo O. Aquino, Gary H. Bernstein, Alexei Orlov, Wolfgang Porod, Jonathan Chisum
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/93eec54cdf254947a56570d71cd8750d
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spelling oai:doaj.org-article:93eec54cdf254947a56570d71cd8750d2021-12-02T15:15:44ZEfficient electromagnetic transducers for spin-wave devices10.1038/s41598-021-97627-32045-2322https://doaj.org/article/93eec54cdf254947a56570d71cd8750d2021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97627-3https://doaj.org/toc/2045-2322Abstract This paper presents a system-level efficiency analysis, a rapid design methodology, and a numerical demonstration of efficient sub-micron, spin-wave transducers in a microwave system. Applications such as Boolean spintronics, analog spin-wave-computing, and magnetic microwave circuits are expected to benefit from this analysis and design approach. These applications have the potential to provide a low-power, magnetic paradigm alternative to modern electronic systems, but they have been stymied by a limited understanding of the microwave, system-level design for spin-wave circuits. This paper proposes an end-to-end microwave/spin-wave system model that permits the use of classical microwave network analysis and matching theory towards analyzing and designing efficient transduction systems. This paper further compares magnetostatic-wave transducer theory to electromagnetic simulations and finds close agreement, indicating that the theory, despite simplifying assumptions, is useful for rapid yet accurate transducer design. It further suggests that the theory, when modified to include the exchange interaction, will also be useful to rapidly and accurately design transducers launching magnons at exchange wavelengths. Comparisons are made between microstrip and co-planar waveguide lines, which are expedient, narrowband, and low-efficiency transducers, and grating and meander lines that are capable of high-efficiency and wideband performance. The paper concludes that efficient microwave-to-spin-wave transducers are possible and presents a meander transducer design on YIG capable of launching $$\varvec{\lambda = 500}\,$$ λ = 500 nm spin waves with an efficiency of − 4.45 dB and a 3 dB-bandwidth of 134 MHz.David A. ConnellyGyorgy CsabaHadrian Renaldo O. AquinoGary H. BernsteinAlexei OrlovWolfgang PorodJonathan ChisumNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
David A. Connelly
Gyorgy Csaba
Hadrian Renaldo O. Aquino
Gary H. Bernstein
Alexei Orlov
Wolfgang Porod
Jonathan Chisum
Efficient electromagnetic transducers for spin-wave devices
description Abstract This paper presents a system-level efficiency analysis, a rapid design methodology, and a numerical demonstration of efficient sub-micron, spin-wave transducers in a microwave system. Applications such as Boolean spintronics, analog spin-wave-computing, and magnetic microwave circuits are expected to benefit from this analysis and design approach. These applications have the potential to provide a low-power, magnetic paradigm alternative to modern electronic systems, but they have been stymied by a limited understanding of the microwave, system-level design for spin-wave circuits. This paper proposes an end-to-end microwave/spin-wave system model that permits the use of classical microwave network analysis and matching theory towards analyzing and designing efficient transduction systems. This paper further compares magnetostatic-wave transducer theory to electromagnetic simulations and finds close agreement, indicating that the theory, despite simplifying assumptions, is useful for rapid yet accurate transducer design. It further suggests that the theory, when modified to include the exchange interaction, will also be useful to rapidly and accurately design transducers launching magnons at exchange wavelengths. Comparisons are made between microstrip and co-planar waveguide lines, which are expedient, narrowband, and low-efficiency transducers, and grating and meander lines that are capable of high-efficiency and wideband performance. The paper concludes that efficient microwave-to-spin-wave transducers are possible and presents a meander transducer design on YIG capable of launching $$\varvec{\lambda = 500}\,$$ λ = 500 nm spin waves with an efficiency of − 4.45 dB and a 3 dB-bandwidth of 134 MHz.
format article
author David A. Connelly
Gyorgy Csaba
Hadrian Renaldo O. Aquino
Gary H. Bernstein
Alexei Orlov
Wolfgang Porod
Jonathan Chisum
author_facet David A. Connelly
Gyorgy Csaba
Hadrian Renaldo O. Aquino
Gary H. Bernstein
Alexei Orlov
Wolfgang Porod
Jonathan Chisum
author_sort David A. Connelly
title Efficient electromagnetic transducers for spin-wave devices
title_short Efficient electromagnetic transducers for spin-wave devices
title_full Efficient electromagnetic transducers for spin-wave devices
title_fullStr Efficient electromagnetic transducers for spin-wave devices
title_full_unstemmed Efficient electromagnetic transducers for spin-wave devices
title_sort efficient electromagnetic transducers for spin-wave devices
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/93eec54cdf254947a56570d71cd8750d
work_keys_str_mv AT davidaconnelly efficientelectromagnetictransducersforspinwavedevices
AT gyorgycsaba efficientelectromagnetictransducersforspinwavedevices
AT hadrianrenaldooaquino efficientelectromagnetictransducersforspinwavedevices
AT garyhbernstein efficientelectromagnetictransducersforspinwavedevices
AT alexeiorlov efficientelectromagnetictransducersforspinwavedevices
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