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説明:

We experimentally study the magnetization dynamics of an all-in-plane spin-torque oscillator (AIP-STO) by using injection locking to an external microwave magnetic field. The AIP-STO exhibits multiple frequency signals corresponding not only to the oscillation frequencies of the magnetic layers but also to the difference between these frequencies. The oscillation frequency is identified based on the principle that injection locking occurs only to the signal corresponding to the magnetization oscillation. We also analyze the magnetization dynamics during injection locking by micromagnetic simulations. The results demonstrate that injection locking is a powerful tool for elucidating the oscillation of the AIP-STO.

権利情報:

• In Copyright
  This is an author-created, un-copyedited version of an article accepted for publication/published in Applied Physics Express. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.35848/1882-0786/abf667.

キーワード: spin-torque oscillator, injection locking, spin-transfer torque, microwave-assisted magnetic recording , micro magnetic simulation

刊行年月日: 2021-05-01

出版者: IOP Publishing

掲載誌:

• Applied Physics Express (ISSN: 18820778) vol. 14 issue. 5 p. 53001-53001

研究助成金:

• JSPS JP19K05257 (Design and development of spin-torque-oscillator and recording media for microwave assisted magnetic recording)
• ASRC

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.4560

公開URL: https://doi.org/10.35848/1882-0786/abf667

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更新時刻: 2024-06-28 16:30:23 +0900

MDRでの公開時刻: 2024-06-28 16:30:23 +0900