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Classification tasks using input driven nonlinear magnetization dynamics in spin Hall oscillator
http://hdl.handle.net/10228/0002000063
http://hdl.handle.net/10228/0002000063baa23fd2-d109-4a8e-9375-b0118de4fef4
| 名前 / ファイル | ライセンス | アクション |
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s41598-023-34849-7.pdf (6 MB)
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| Item type | 学術雑誌論文 = Journal Article(1) | |||||||||||||||||||||||||||
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| 公開日 | 2023-08-18 | |||||||||||||||||||||||||||
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| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||||||||||||
| 資源タイプ | journal article | |||||||||||||||||||||||||||
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| タイトル | Classification tasks using input driven nonlinear magnetization dynamics in spin Hall oscillator | |||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||||
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| 言語 | eng | |||||||||||||||||||||||||||
| 著者 |
Mohan, John Rex
× Mohan, John Rex
× Mathew, Arun Jacob
× Nishimura, Kazuma
× Feng, Ruoyan
× Medwal, Rohit
× Gupta, Surbhi
× Rawat, Rajdeep Singh
× 福間, 康裕
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25415
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| 内容記述タイプ | Abstract | |||||||||||||||||||||||||||
| 内容記述 | The inherent nonlinear magnetization dynamics in spintronic devices make them suitable candidates for neuromorphic hardware. Among spintronic devices, spin torque oscillators such as spin transfer torque oscillators and spin Hall oscillators have shown the capability to perform recognition tasks. In this paper, with the help of micromagnetic simulations, we model and demonstrate that the magnetization dynamics of a single spin Hall oscillator can be nonlinearly transformed by harnessing input pulse streams and can be utilized for classification tasks. The spin Hall oscillator utilizes the microwave spectral characteristics of its magnetization dynamics for processing a binary data input. The spectral change due to the nonlinear magnetization dynamics assists in real-time feature extraction and classification of 4-binary digit input patterns. The performance was tested for the classification of the standard MNIST handwritten digit data set and achieved an accuracy of 83.1% in a simple linear regression model. Our results suggest that modulating time-driven input data can generate diverse magnetization dynamics in the spin Hall oscillator that can be suitable for temporal or sequential information processing. | |||||||||||||||||||||||||||
| 書誌情報 |
en : Scientific Reports 巻 13, 号 1, p. 7909, 発行日 2023-05-16 |
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| 出版者 | Nature Publishing Group | |||||||||||||||||||||||||||
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| 関連タイプ | isIdenticalTo | |||||||||||||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||||||||||||
| 関連識別子 | https://doi.org/10.1038/s41598-023-34849-7 | |||||||||||||||||||||||||||
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| 収録物識別子タイプ | EISSN | |||||||||||||||||||||||||||
| 収録物識別子 | 2045-2322 | |||||||||||||||||||||||||||
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| 権利情報Resource | http://creativecommons.org/licenses/by/4.0/ | |||||||||||||||||||||||||||
| 権利情報 | 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/. | |||||||||||||||||||||||||||
| 出版タイプ | ||||||||||||||||||||||||||||
| 出版タイプ | VoR | |||||||||||||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||||||||||||||||
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| 値 | yes | |||||||||||||||||||||||||||
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| URL | https://hyokadb02.jimu.kyutech.ac.jp/html/100000402_ja.html | |||||||||||||||||||||||||||
