Microwave magnetic field modulation of spin torque oscillator based on perpendicular magnetic tunnel junctions

Modulation of a microwave signal generated by the spin-torque oscillator (STO) based on a magnetic tunnel junction (MTJ) with perpendicularly magnetized free layer is investigated. Magnetic field inductive loop was created during MTJ fabrication process, which enables microwave field application dur...

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Detalles Bibliográficos
Autores principales: Skowroński, Witold, Chęciński, Jakub, Ziętek, Sławomir, Yakushiji, Kay, Yuasa, Shinji
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6910944/
https://www.ncbi.nlm.nih.gov/pubmed/31836753
http://dx.doi.org/10.1038/s41598-019-55220-9
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author Skowroński, Witold
Chęciński, Jakub
Ziętek, Sławomir
Yakushiji, Kay
Yuasa, Shinji
author_facet Skowroński, Witold
Chęciński, Jakub
Ziętek, Sławomir
Yakushiji, Kay
Yuasa, Shinji
author_sort Skowroński, Witold
collection PubMed
description Modulation of a microwave signal generated by the spin-torque oscillator (STO) based on a magnetic tunnel junction (MTJ) with perpendicularly magnetized free layer is investigated. Magnetic field inductive loop was created during MTJ fabrication process, which enables microwave field application during STO operation. The frequency modulation by the microwave magnetic field of up to 3 GHz is explored, showing a potential for application in high-data-rate communication technologies. Moreover, an inductive loop is used for self-synchronization of the STO signal, which after field-locking, exhibits significant improvement of the linewidth and oscillation power.
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spelling pubmed-69109442019-12-16 Microwave magnetic field modulation of spin torque oscillator based on perpendicular magnetic tunnel junctions Skowroński, Witold Chęciński, Jakub Ziętek, Sławomir Yakushiji, Kay Yuasa, Shinji Sci Rep Article Modulation of a microwave signal generated by the spin-torque oscillator (STO) based on a magnetic tunnel junction (MTJ) with perpendicularly magnetized free layer is investigated. Magnetic field inductive loop was created during MTJ fabrication process, which enables microwave field application during STO operation. The frequency modulation by the microwave magnetic field of up to 3 GHz is explored, showing a potential for application in high-data-rate communication technologies. Moreover, an inductive loop is used for self-synchronization of the STO signal, which after field-locking, exhibits significant improvement of the linewidth and oscillation power. Nature Publishing Group UK 2019-12-13 /pmc/articles/PMC6910944/ /pubmed/31836753 http://dx.doi.org/10.1038/s41598-019-55220-9 Text en © The Author(s) 2019 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
Skowroński, Witold
Chęciński, Jakub
Ziętek, Sławomir
Yakushiji, Kay
Yuasa, Shinji
Microwave magnetic field modulation of spin torque oscillator based on perpendicular magnetic tunnel junctions
title Microwave magnetic field modulation of spin torque oscillator based on perpendicular magnetic tunnel junctions
title_full Microwave magnetic field modulation of spin torque oscillator based on perpendicular magnetic tunnel junctions
title_fullStr Microwave magnetic field modulation of spin torque oscillator based on perpendicular magnetic tunnel junctions
title_full_unstemmed Microwave magnetic field modulation of spin torque oscillator based on perpendicular magnetic tunnel junctions
title_short Microwave magnetic field modulation of spin torque oscillator based on perpendicular magnetic tunnel junctions
title_sort microwave magnetic field modulation of spin torque oscillator based on perpendicular magnetic tunnel junctions
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6910944/
https://www.ncbi.nlm.nih.gov/pubmed/31836753
http://dx.doi.org/10.1038/s41598-019-55220-9
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