高周波帯での薄膜磁気インピーダンス素子特性とその動作解析

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2024/08/01

タイトル(英語): The Properties and their Analysis of Thin-film Magnetoimpedance Element at Higher Frequency

著者名: 菊池　弘昭（岩手大学理工学部），田中　雄太（岩手大学理工学部），谷井　雅（岩手大学理工学部）

著者名(英語): Hiroaki Kikuchi (Iwate University), Yuta Tanaka (Iwate University), Masaru Tanii (Iwate University)

キーワード: 薄膜，磁気インピーダンス，変化率，高周波　　thin-film，magnetoimpedance，change ratio，high frequency

要約(英語): Thin-film magnetoimpedance element utilizes impedance change based on ferromagnetic resonance and skin effect via magnetic permeability change when a magnetic field is applied. The impedance change ratio about 400% has been achieved with a film thickness of a few μm around 1 GHz. In this paper, we systematically investigated the impedance change in the GHz range and clarified that the impedance change ratio depends on the element dimensions and that it is due to the contribution of reactance portion. In addition, the dependence of the impedance change ratio on element dimensions can be explained qualitatively based on magnetic field simulations, which also indicates a possibility of quantitative estimation.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.144 No.8 （2024） 特集：磁気センサと機械学習の活用技術の新展開

本誌掲載ページ: 319-324 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/144/8/144_319/_article/-char/ja/