反磁場係数を考慮した実効透磁率の複素透磁率への展開とその応用

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: 2021/05/01

タイトル(英語): Development of Effective Permeability to Complex Permeability and its Application Taking Account of Demagnetization Factor

著者名: 川井　哲郎（横浜国立大学 大学院工学研究院），武田　茂（Magnontech Ltd.），大竹　充（横浜国立大学 大学院工学研究院）

著者名(英語): Tetsuroh Kawai (Faculty of Engineering, Yokohma National University), Shigeru Takeda (Magnontech Ltd.), Mitsuru Ohtake (Faculty of Engineering, Yokohma National University)

キーワード: 実効透磁率，複素透磁率，反磁場係数，高周波，強磁性共鳴，LLG方程式　　effective permeability，complex permeability，demagnetization factor，radio frequency，ferromagnetic resonance，LLG equation

要約(英語): Effective permeability taking account of demagnetization factor is widely used in the field of the magnetic engineering. A development of this effective permeability to complex permeability in the high frequency domain is studied. In comparison with the solution of LLG equation, it shows that the permeability in the low frequency domain and the resonance frequency calculated by using demagnetization factor are almost corresponding to those calculated by LLG equation. However, the good agreement is not seen in the resonance absorption peak width. Furthermore, the measured complex permeability of a Ni-Fe film is compared with the calculations by using demagnetization factor.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.141 No.5 （2021） 特集：高周波磁性材料の実用化のための技術動向と展望

本誌掲載ページ: 311-316 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/141/5/141_311/_article/-char/ja/