磁区エネルギー構造と遅延追跡法によるバルクハウゼン効果の解析

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: 2013/09/01

タイトル(英語): Analysis of the Barkhausen Effect with Domain Energy System and the Retarded Trace Method

著者名: 小畑　修二（東京電機大学 理工学部 電子・機械工学系）

著者名(英語): Shuji Obata (Electronic-Mechanical Engineering, School of Science & Engineering, Tokyo Denki University)

キーワード: 遅延追跡法，ヒステリシス特性，磁壁運動，バルクハウゼン効果，磁気双極子相互作用，鉄　　retarded trace method，B-H characters，domain wall motion，Barkhausen effect，magnetic dipole moment，Fe

要約(英語): Motions of magnetic domain walls are trapped at pinning points. The Barkhausen effect occurs at such pinning point break down inducing drastic transitions in flux structures. The domain energies are calculated from magnetic dipole moment interactions, which determine domain structures in the system. The flux structure transition occurs between loop and open domains with added field ΔH, which changes drastically the domain energy system and makes the lower energy states. The retarded trace method is based on the mechanisms of the domain system requiring the increased field steps for the changes, which nicely explains the experimental data of Fe nano-particles. This method can analyze B-H characteristics in various materials.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.133 No.9 （2013）

本誌掲載ページ: 489-499 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/133/9/133_489/_article/-char/ja/