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The switching of strong spin wave beams in patterned garnet films

The application of spin waves in communication with information encoded in amplitude and phase could replace or enhance existing microelectronic and microwave devices with significantly decreased energy consumption. Spin waves (SW) are usually transported in a magnetic material shaped to act as a wa...

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Autores principales: Gieniusz, R., Gruszecki, P., Krawczyk, M., Guzowska, U., Stognij, A., Maziewski, A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5562706/
https://www.ncbi.nlm.nih.gov/pubmed/28821726
http://dx.doi.org/10.1038/s41598-017-06531-2
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author Gieniusz, R.
Gruszecki, P.
Krawczyk, M.
Guzowska, U.
Stognij, A.
Maziewski, A.
author_facet Gieniusz, R.
Gruszecki, P.
Krawczyk, M.
Guzowska, U.
Stognij, A.
Maziewski, A.
author_sort Gieniusz, R.
collection PubMed
description The application of spin waves in communication with information encoded in amplitude and phase could replace or enhance existing microelectronic and microwave devices with significantly decreased energy consumption. Spin waves (SW) are usually transported in a magnetic material shaped to act as a waveguide. However, the implementation of SW transport and switching in plane homogeneous magnetic films and running as a narrow beam with a small divergence angle still present a challenge. We propose a realization of a strong SW switchers based on a patterned yttrium iron garnet (YIG) film that could serve as a magnonic fundamental building block. Our concept relies on the creation of a narrow beam of relatively short-wavelength SW by effect of a total non-reflection, found to be tied to refraction on the decreasing internal magnetic field, near a line of antidots at YIG. Nonreciprocal SW excitation by a microstrip antenna is used for controlling the direction of the signal flow. We demonstrate unique features of the propagation of microwave-excited SW beams, provide insight into their physics and discuss their potential applications in high-frequency devices.
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spelling pubmed-55627062017-08-21 The switching of strong spin wave beams in patterned garnet films Gieniusz, R. Gruszecki, P. Krawczyk, M. Guzowska, U. Stognij, A. Maziewski, A. Sci Rep Article The application of spin waves in communication with information encoded in amplitude and phase could replace or enhance existing microelectronic and microwave devices with significantly decreased energy consumption. Spin waves (SW) are usually transported in a magnetic material shaped to act as a waveguide. However, the implementation of SW transport and switching in plane homogeneous magnetic films and running as a narrow beam with a small divergence angle still present a challenge. We propose a realization of a strong SW switchers based on a patterned yttrium iron garnet (YIG) film that could serve as a magnonic fundamental building block. Our concept relies on the creation of a narrow beam of relatively short-wavelength SW by effect of a total non-reflection, found to be tied to refraction on the decreasing internal magnetic field, near a line of antidots at YIG. Nonreciprocal SW excitation by a microstrip antenna is used for controlling the direction of the signal flow. We demonstrate unique features of the propagation of microwave-excited SW beams, provide insight into their physics and discuss their potential applications in high-frequency devices. Nature Publishing Group UK 2017-08-18 /pmc/articles/PMC5562706/ /pubmed/28821726 http://dx.doi.org/10.1038/s41598-017-06531-2 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Gieniusz, R.
Gruszecki, P.
Krawczyk, M.
Guzowska, U.
Stognij, A.
Maziewski, A.
The switching of strong spin wave beams in patterned garnet films
title The switching of strong spin wave beams in patterned garnet films
title_full The switching of strong spin wave beams in patterned garnet films
title_fullStr The switching of strong spin wave beams in patterned garnet films
title_full_unstemmed The switching of strong spin wave beams in patterned garnet films
title_short The switching of strong spin wave beams in patterned garnet films
title_sort switching of strong spin wave beams in patterned garnet films
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5562706/
https://www.ncbi.nlm.nih.gov/pubmed/28821726
http://dx.doi.org/10.1038/s41598-017-06531-2
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