Preparation of magnetic metal-dielectric crystal nano-composite films with multi-functional properties

2016 Fiscal Year Final Research Report

• Project/Area Number: 26289253
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Structural/Functional materials
• Research Institution: Tohoku University
• Principal Investigator: MASUMOTO HIROSHI 東北大学, 学際科学フロンティア研究所, 教授 (50209459)
• Co-Investigator(Kenkyū-buntansha): 野瀬 正照 富山大学, 芸術文化学部, 教授 (70269570) ; 小林 伸聖 公益財団法人電磁材料研究所, 電磁気材料グループ, 主席研究員 (70205475) ; 張 亦文 東北大学, 学際科学フロンティア研究所, 助教 (30579959)
• Co-Investigator(Renkei-kenkyūsha): ABE SEISHI 電磁材料研究所, 光材料グループ, 主席研究員 (20202666) ; OHNUMA SHIGEHIRO 電磁材料研究所, 電磁気材料グループ, 主席研究員 (50142633)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: トンネル磁気誘電効果 / トンネル磁気光学効果 / 複機能物性 / ナノ複相構造薄膜 / 高周波軟磁気特性 / 磁性金属 / 誘電体

Outline of Final Research Achievements

In this research, we prepared the nano-composite thin films with new multi-functional properties, composed of magnetic metal nano-granule dispersed in the dielectric matrix. New magneto-dielectric effect, namely "Tunneling Magneto-Dielectric (TMD) effect" was discovered in nano-composite film composed of dielectric ceramics (MgF2) and magnetic metal nano-granule (FeCo).Optically transparent ferromagnetic films with tunable transmittance, namely "Tunneling Magneto-Optic (TMO) effect" material was developed in nano-composite film composed of dielectric ceramics (AlF3) and magnetic metal nano-granule (FeCo).

Free Research Field

ナノ複合機能材料学