Creation of nano-composite films with ferromagnetic and dielectric properties

• Project/Area Number: 22860007
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Structural/Functional materials
• Research Institution: Tohoku University
• Principal Investigator: ZHANG Yiwen 東北大学, 学際科学国際高等研究センター, 教育研究支援者 (30579959)
• Project Period (FY): 2010 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥3,042,000 (Direct Cost: ¥2,340,000、Indirect Cost: ¥702,000); Fiscal Year 2011: ¥1,456,000 (Direct Cost: ¥1,120,000、Indirect Cost: ¥336,000); Fiscal Year 2010: ¥1,586,000 (Direct Cost: ¥1,220,000、Indirect Cost: ¥366,000)
• Keywords: 複相構造薄膜 / 強磁性 / 磁気異方性 / 高周波電子デバイス材料 / Co-TiN / ナノヘテロ複相構造 / 高周波軟磁気性 / 耐熱性 / 電磁波ノイズ抑制効果 / 誘電性 / 複合機能

Research Abstract

According to the rapid development of industrial devices, the new high frequency magnetic materials are expected. In this research, the nano-composite hetero-structured films were studied with magnetic particles embedded in ceramic matrix. The TiN ceramic matrix was chosen for its high thermal and chemical stability. The Co-TiN films show good soft magnetic properties in a wide-range of Co content : Co_x-(TiN)_<1-X> (x=40-80 at.%), and exhibit good thermal stability after the annealing at 600℃. Moreover, the electromagnetic noise suppressor of soft Co-TiN magnetic films has been demonstrated successfully.

Research Products

• [Journal Article] Soft Magnetic Co-(TiN)Composite Films Realized within a Wide-Range of Cobalt Content (2011)
  • Author(s): Yiwen Zhang, Shigehiro Ohnuma and Hiroshi Masumoto
  • Journal Title: IEEE TRANSACTIONS ON MAGNETICS Volume: Vol.47 Issue: 10 Pages: 3795-3798
  • DOI: 10.1109/tmag.2011.2156763
  • Peer Reviewed
• [Presentation] High-frequency Magnetic Loss Effect of Co-TiN Nano-composite Films (2012)
  • Author(s): Yiwen Zhang, Hanae Kijima, Nobukiyo Kobayashi, Shigehiro Ohnuma and Hiroshi Masumoto
  • Organizer: 日本金属学会2012年春期(第150回)大会
  • Place of Presentation: 横浜国立大学
  • Year and Date: 2012-03-29
• [Presentation] Thermal Stability and Magnetic Damping Effect of Soft Magnetic Co-TiN Nano-composite Films (2011)
  • Author(s): Yiwen Zhang, Hanae Kijima, Nobukiyo Kobayashi, Shigehiro Ohnuma and Hiroshi Masumoto
  • Organizer: 日本金属学会2011年秋期(第149回)大会
  • Place of Presentation: 沖縄コンベンションセンター
  • Year and Date: 2011-11-07
• [Presentation] 垂直磁気異方性を有するCo-AlN高周波軟磁性膜の静磁界中熱処理の影響 (2011)
  • Author(s): 木嶌英恵、張亦文、小林伸聖、大沼繁弘、増本博
  • Organizer: 日本金属学会2011年秋期(第149回)大会
  • Place of Presentation: 沖縄コンベンションセンター
  • Year and Date: 2011-11-07
• [Presentation] Soft Magnetic Co-(TiN)Composite Films Realized within a Wide-Range of Cobalt Content (2011)
  • Author(s): Yiwen Zhang, Shigehiro Ohnuma and Hiroshi Masumoto
  • Organizer: International Magnetics Conference
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2011-04-28
• [Presentation] Soft Magnetic Co-(TiN) Composite Films Realized within a Wide-Range of Cobalt Content (2011)
  • Author(s): Yiwen Zhang, Shigehiro Ohnuma, Hiroshi Masumoto
  • Organizer: International Magnetics Conference
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2011-04-28
• [Presentation] Soft-magnetic Properties of Co-TiN Alloy Films Fabricated by RF Sputtering (2010)
  • Author(s): 張亦文、大沼繁弘、増本博
  • Organizer: 日本金属学会2010年秋期(第147回)大会
  • Place of Presentation: 北海道大学
  • Year and Date: 2010-09-26