中性子回折と放射光によるLa-Co置換フェライトの局所構造解析

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: 2016/08/01

タイトル(英語): Local Structural Analysis of La-Co Substituted Ferrites by Neutron Diffraction and Synchrotron Radiation

著者名: 小林　義徳（日立金属（株）磁性材料カンパニー磁性材料研究所）

著者名(英語): Yoshinori Kobayashi (Magnetic Materials Company, Magnetic Materials Research Laboratory, Hitachi Metals, Ltd.)

キーワード: La-Co置換フェライト磁石，中性子回折，EXAFS，XMCD　　La-Co substituted ferrite magnets，neutron diffraction，EXAFS，XMCD

要約(英語): The La-Co substituted magnetoplumbite type (M-type) hexagonal ferrites are known to have the higher magnetic crystalline anisotropy compared with conventional M-type Sr ferrites. The site occupation of cation in the crystal structure has been analyzed by neutron diffraction and EXAFS (Extended X-ray Absorption Fine Structure) spectroscopy in order to clarify the correlation between the local structural change and the improvement of the magnetic anisotropy. The EXAFS analysis has suggested that Co ions were located in the 4f1, which showed good agreement with the results by neutron diffraction and XMCD analysis.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.136 No.8 （2016） 特集：高性能永久磁石の最先端研究とその応用動向

本誌掲載ページ: 472-477 p

原稿種別: 解説論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/136/8/136_472/_article/-char/ja/