時間変調磁性メタマテリアルに向けたスピン流誘起透磁率変調の評価
書誌事項
- タイトル別名
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- Evaluation of Spin-Current-Induced Permeability Variation toward Time-Varying Magnetic Metamaterials
抄録
<p> The permeability (μ) variation of lithographically-prepared magnetic metamaterials consisting of Ta/Py/Pt trilayers is studied by means of spin-torque ferromagnetic resonance (ST-FMR) with a direct current up to ±20 mA. The substrate dependence of ST-FMR signals demonstrate that the non-doped Si substrate is the most stable and capable of carrying large direct currents. The μ analytically calculated on the basis of the experimentally obtained resonance field and Gilbert damping parameter are plotted on a complex plane, which shows the permeability variation visually and quantitatively. The present study enables us to design a microwave converter using time-varying magnetic metamaterials for millimeter wave or terahertz light sources toward the post-5th generation mobile communication system.</p>
収録刊行物
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- 日本磁気学会論文特集号
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日本磁気学会論文特集号 8 (1), 15-20, 2024-05-01
公益社団法人 日本磁気学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390299993932638464
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- ISSN
- 24320471
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
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- 抄録ライセンスフラグ
- 使用不可