Analysis of an all-in-plane spin-torque oscillator using injection locking to an external microwave magnetic field

Hirofumi Suto, Hossein Sepehri-Amin, Nagarjuna Asam, Weinan Zhou, Anton Bolyachkin, Masayuki Takagishi, Naoyuki Narita, Shingo Tamaru, Tomoya Nakatani, Yuya Sakuraba

研究成果: Article査読

1 被引用数 (Scopus)

抄録

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.

本文言語English
論文番号abf667
ジャーナルApplied Physics Express
14
5
DOI
出版ステータスPublished - 2021 5
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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