Development of high-performance nano-pillar type multiferroic materials utilizing ferroelectric nanoplate films

2016 Fiscal Year Final Research Report

• Project/Area Number: 26289275
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Material processing/Microstructural control engineering
• Research Institution: University of Hyogo
• Principal Investigator: KOBUNE MASAFUMI 兵庫県立大学, 工学(系)研究科(研究院), 教授 (90240960)
• Co-Investigator(Kenkyū-buntansha): 菊池 丈幸 兵庫県立大学, 工学(系)研究科(研究院), 准教授 (50316048)
• Co-Investigator(Renkei-kenkyūsha): YONEDA Yasuhiro 国立研究開発法人日本原子力研究開発機構, 研究主幹 (30343924)
• Research Collaborator: KUGIMIYA Takuya 兵庫県立大学, 大学院 ; UESHIMA Satoshi 兵庫県立大学, 大学院 ; KURIYAMA Tomoyuki 兵庫県立大学, 大学院
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: マルチフェロイック材料 / 電気磁気効果

Outline of Final Research Achievements

Highly a-axis oriented (Bi3.25Nd0.65Eu0.10)Ti3O12 (BNEuT) films were fabricated by high-temperature sputtering. Single-phase magnetite (Fe3O4) films were deposited on (200) BNEuT/(101) Nb:TiO2 substrates at 400-500℃ for 30-90 min by metalorganic chemical vapor deposition (MOCVD). Fe3O4 electrodes micropatterned using a reactive ion etching were fabricated after MOCVD, and the structural, magnetic, and ferroelectric properties for a sample with the structure Fe3O4/(200) BNEuT/(101) Nb:TiO2/Ti were investigated. It was thus demonstrated that the developed material had potential for use at room temperature as a multiferroic material with ferroelectricity and ferromagnetism.

Free Research Field

材料工学・材料加工・組織制御工学