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Wide range tuning of resonant frequency for a vortex core in a regular triangle magnet
A magnetic vortex structure stabilized in a micron or nano-sized ferromagnetic disk has a strong potential as a unit cell for spin-based nano-electronic devices because of negligible magnetostatic interaction and superior thermal stability. Moreover, various intriguing fundamental physics such as bl...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3868959/ https://www.ncbi.nlm.nih.gov/pubmed/24356511 http://dx.doi.org/10.1038/srep03567 |
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author | Yakata, Satoshi Tanaka, Terumitsu Kiseki, Kohei Matsuyama, Kimihide Kimura, Takashi |
author_facet | Yakata, Satoshi Tanaka, Terumitsu Kiseki, Kohei Matsuyama, Kimihide Kimura, Takashi |
author_sort | Yakata, Satoshi |
collection | PubMed |
description | A magnetic vortex structure stabilized in a micron or nano-sized ferromagnetic disk has a strong potential as a unit cell for spin-based nano-electronic devices because of negligible magnetostatic interaction and superior thermal stability. Moreover, various intriguing fundamental physics such as bloch point reversal and symmetry breaking can be induced in the dynamical behaviors in the magnetic vortex. The static and dynamic properties of the magnetic vortex can be tuned by the disk dimension and/or the separation distance between the disks. However, to realize these modifications, the preparations of other devices with different sample geometries are required. Here, we experimentally demonstrate that, in a regular-triangle Permalloy dot, the dynamic properties of a magnetic vortex are greatly modified by the application of the in-plane magnetic field. The obtained wide range tunability based on the asymmetric position dependence of the core potential provides attractive performances in the microwave spintronic devices. |
format | Online Article Text |
id | pubmed-3868959 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-38689592013-12-20 Wide range tuning of resonant frequency for a vortex core in a regular triangle magnet Yakata, Satoshi Tanaka, Terumitsu Kiseki, Kohei Matsuyama, Kimihide Kimura, Takashi Sci Rep Article A magnetic vortex structure stabilized in a micron or nano-sized ferromagnetic disk has a strong potential as a unit cell for spin-based nano-electronic devices because of negligible magnetostatic interaction and superior thermal stability. Moreover, various intriguing fundamental physics such as bloch point reversal and symmetry breaking can be induced in the dynamical behaviors in the magnetic vortex. The static and dynamic properties of the magnetic vortex can be tuned by the disk dimension and/or the separation distance between the disks. However, to realize these modifications, the preparations of other devices with different sample geometries are required. Here, we experimentally demonstrate that, in a regular-triangle Permalloy dot, the dynamic properties of a magnetic vortex are greatly modified by the application of the in-plane magnetic field. The obtained wide range tunability based on the asymmetric position dependence of the core potential provides attractive performances in the microwave spintronic devices. Nature Publishing Group 2013-12-20 /pmc/articles/PMC3868959/ /pubmed/24356511 http://dx.doi.org/10.1038/srep03567 Text en Copyright © 2013, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/ |
spellingShingle | Article Yakata, Satoshi Tanaka, Terumitsu Kiseki, Kohei Matsuyama, Kimihide Kimura, Takashi Wide range tuning of resonant frequency for a vortex core in a regular triangle magnet |
title | Wide range tuning of resonant frequency for a vortex core in a regular triangle magnet |
title_full | Wide range tuning of resonant frequency for a vortex core in a regular triangle magnet |
title_fullStr | Wide range tuning of resonant frequency for a vortex core in a regular triangle magnet |
title_full_unstemmed | Wide range tuning of resonant frequency for a vortex core in a regular triangle magnet |
title_short | Wide range tuning of resonant frequency for a vortex core in a regular triangle magnet |
title_sort | wide range tuning of resonant frequency for a vortex core in a regular triangle magnet |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3868959/ https://www.ncbi.nlm.nih.gov/pubmed/24356511 http://dx.doi.org/10.1038/srep03567 |
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