Development of spin-nanocluster based material for highly qualified electronic device in GHz band

• Project/Area Number: 18206030
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Electronic materials/Electric materials
• Research Institution: Tohoku University
• Principal Investigator: TAKAHASHI Migaku Tohoku University, 未来科学技術共同研究センター, 教授 (70108471)
• Co-Investigator(Kenkyū-buntansha): OGAWA Tomoyuki 東北大学, 大学院・工学研究科, 助教 (50372305) ; 齊藤 伸 東北大学, 大学院・工学研究科, 准教授 (50344700)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥48,880,000 (Direct Cost: ¥37,600,000、Indirect Cost: ¥11,280,000); Fiscal Year 2008: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000); Fiscal Year 2007: ¥15,730,000 (Direct Cost: ¥12,100,000、Indirect Cost: ¥3,630,000); Fiscal Year 2006: ¥23,660,000 (Direct Cost: ¥18,200,000、Indirect Cost: ¥5,460,000)
• Keywords: 磁性ナノ粒子 / 複合材料 / 自己組織化 / 高周波デバイス / 超常磁性 / 化学合成 / ドライプロセス / グラニュラ構造 / ナノ粒子超格子 / 高周波デバイス応用

Research Abstract

磁性ナノ粒子(スピンナノクラスター)の高周波電子部品材料への応用を念頭に、磁性材料をナノサイズ化して発現する超常磁性の磁気共鳴周波数および透磁率について理論的・実験的に検証を行った。結果として、190emu/gの高飽和磁化を有するFeスピンナノクラスターの合成ならびに3nm~12nmの粒径制御に成功した。また、超常磁性スピンナノクラスターは熱磁界を有効磁気異方性磁界としたGHz帯域駆動が可能であることを実証した。

Research Products

• [Journal Article] Challenge of ultra high frequency limit of permeability for magnetic nanoparticle assembly with organic polymer - Application of Superparamagnetism (2009)
  • Author(s): D. Hasegawa, H. Yang, M. Takahashi, and T. Ogawa
  • Journal Title: J.Magn, Magn.Mater. 321 Pages: 746-749
  • Peer Reviewed
• [Journal Article] 招待論文 Current perspective "Tailor-made nano structured materials for perpendicular recording media and head." (2009)
  • Author(s): M. Takahashi, M. Tsunoda, and S. Saito
  • Journal Title: J.Magn.Magn.Mater. 321 Pages: 539-544
  • Peer Reviewed
• [Journal Article] Challenge of ultra high frequency limit of permeability for magnetic nanoparticle assembly with organic polymer〜Application of Superpara magnetism〜(invited) (2009)
  • Author(s): D. Hasegawa
  • Journal Title: Journa of Magnetism and Magnetic Materials 321巻 Pages: 746-749
  • Peer Reviewed
• [Journal Article] Achieving a Non-interacting Magnetic Nanoparticle System through Direct Control of Interparticle Spacing (2009)
  • Author(s): H. Yang
  • Journal Title: Applied Physics Letters 94巻
  • Peer Reviewed
• [Journal Article] Pseudo-hcp nonmagnetic intermediate layer for granular media with high perpendicular magnetic anisotropy (2008)
  • Author(s): A. Hashimoto, S. Saito, N. Itagaki, and M. Takahashi
  • Journal Title: J.Phys.D : Appl.Phys.as a fast track communication 41
• [Journal Article] Gram-scale synthesis of monodisperse Fenanoparticles in one pot (2008)
  • Author(s): H. Yang, D. Hasegawa, S. Ozaki, T. Sato, M. Takahashi, and T. Ogawa
  • Journal Title: Scripta Materialia 58 Pages: 822-825
• [Journal Article] Facile synthesis, phase transfer, and magnetic properties of monodisperse magnetite nanocubes (2008)
  • Author(s): H. Yang
  • Journal Title: IEEE Transaction on Magnetics 44巻 Pages: 3895-3898
  • Peer Reviewed
• [Journal Article] Shape-controlled synthesis of Fe nanoparticles with high-Ms via modest-temperature reduction methods (2007)
  • Author(s): H. Yang
  • Journal Title: physica status solidi(a) 204巻 Pages: 4013-4016
  • Peer Reviewed
• [Journal Article] Facile large-scale synthesis of monodisperse Fe nanoparticles by modest-temperature decomposition of Fe(CO)_5 (2007)
  • Author(s): H. Yang
  • Journal Title: Journal of Applied Physics 101巻
  • Peer Reviewed
• [Journal Article] Synthesis and Magnetic Properties of Size Controlled Soft Magnetic Co_<1-x>Ir_x Alloy Nanoparticles for High Frequency Applications (2007)
  • Author(s): C. N. Chinnasamy
  • Journal Title: IEEE Transaction on Magnetics 43巻 Pages: 3112-3114
  • Peer Reviewed
• [Journal Article] Magnetic Fe nanoparticles inserted into single-walled carbon nanotubes (2007)
  • Author(s): Y.Li
  • Journal Title: Chemical Communications Pages: 254-256
• [Journal Article] A soft magnetic underlayer with negative uniaxial magnetocrystalline anisotropy for suppression of spike noise and wide adjacent track erasure in perpendicular recording media (2006)
  • Author(s): A.Hashimoto
  • Journal Title: Journal of Applied Physics 99巻
• [Journal Article] トピックス : 超常磁性ナノ粒子集合体の形成とその高周波磁気特性 (2006)
  • Author(s): 小川智之
  • Journal Title: まぐね 1巻・12号 Pages: 594-600
• [Journal Article] Heterogeneous Nucleation Synthesis of monodisperse ε-Cobalt Nanoparticles Using Palladium Seeds (2006)
  • Author(s): H.T.Yang
  • Journal Title: Journal of Magnetism and Magnetic Material 304巻
• [Journal Article] Dynamic Magnetic Properties of Fe_3O_4 Nanoparticle Assembly in Ultra-high Frequency Range (2006)
  • Author(s): D.Hasegawa
  • Journal Title: Journal of the Magnetics Society of Japan 30巻・6-1号 Pages: 528-530
• [Journal Article] Magnetization process of h.c.p.-CoIr nanoparticles with negative uniaxial magnetocrystalline anisotropy (2006)
  • Author(s): D.Hasegawa
  • Journal Title: IEEE Transaction on Magnetics 42巻・10号 Pages: 2805-2807
• [Presentation] Fast magnetization dynamics for interacted nanoparticle assembly (2008)
  • Author(s): D. Hasegawa, T. Ogawa, and M. Takahashi
  • Organizer: International Conference on Microwave Magnetics(ICMM 2008)
  • Place of Presentation: Fort Collins, USA,
  • Year and Date: 2008-09-13
• [Presentation] "Challenge of ultra high frequency limit of permeability for magnetic nanoparticle assembly with organic polymer"-Application of Superparamagnetism-(invited), (2008)
  • Author(s): M. Takahashi, D. Hasegawa, and T. Ogawa
  • Organizer: Moscow International Symposium on Magnetism(MISM-2008)
  • Place of Presentation: Moscow, Russia
  • Year and Date: 2008-06-23
• [Presentation] "Challenge of ultra high frequency limit of permeability for magnetic nanoparticle assembly with organic polymer"〜Application of Superpa ramagnetism〜(invited) (2008)
  • Author(s): M. Takahashi
  • Organizer: Moscow International Symposium on Magnetism (MISM-2008)
  • Place of Presentation: モスクワ(ロシア)
  • Year and Date: 2008-06-22
• [Presentation] 磁性材料の現状と将来像 (2007)
  • Author(s): 高橋研
  • Organizer: 第31回日本応用磁気学会学術講演会特別シンポジウム-磁気の現状と将来展望-
  • Place of Presentation: 東京
  • Year and Date: 2007-09-12
• [Presentation] "Tailor-Made Nano Structured Materials for Highly Qualified Spin Related Devices"-Exchange Coupling and Spin Dynamics- (2007)
  • Author(s): M. Takahashi, M. Tsunoda, S. Saito, and T. Ogawa
  • Organizer: The 7^th IEEE International Conference on Nanotechnology(IEEE-NANO 2007)
  • Place of Presentation: Hong Kong, China
  • Year and Date: 2007-08-03
• [Presentation] "Tailor-Made Nano Structured Materials for Highly Qualified Spin Related Devices"-Exchange Coupling and Spin Dynamics-(invited) (2007)
  • Author(s): M. Takahashi
  • Organizer: The 7th IEEE International Conference on Nanotechnology(IEEE-NANO2007)
  • Place of Presentation: 香港コンベンション&エクシビションセンター
  • Year and Date: 2007-08-03
• [Book] 電子材料ハンドブック5.4磁気記録材料 (2006)
  • Author(s): 高橋研
  • Publisher: 朝倉書店
• [Book] 電子材料ハンドブック (2006)
  • Author(s): 木村忠正
  • Total Pages: 989
  • Publisher: 朝倉書店
• [Remarks]
  • URL: http://www.takahashi.ecei.tohoku.ac.jp/index.htm
• [Patent(Industrial Property Rights)] 磁性ナノ粒子の飽和磁化向上 (2007)
  • Inventor(s): 高橋研, 他3名
  • Industrial Property Rights Holder: 東北大学, 太陽誘電(株)
  • Industrial Property Number: 2007-233739
  • Filing Date: 2007-09-10
• [Patent(Industrial Property Rights)] 磁性体アンテナ (2007)
  • Inventor(s): 高橋研, 他3名
  • Industrial Property Rights Holder: 東北大学, 太陽誘電(株)
  • Industrial Property Number: 2007-067561
  • Filing Date: 2007-03-15
• [Patent(Industrial Property Rights)] 磁性ナノ粒子の飽和磁化向上 (2007)
  • Inventor(s): 高橋 研
  • Industrial Property Rights Holder: 東北大学
  • Industrial Property Number: 2007-233739
  • Filing Date: 2007-09-10
• [Patent(Industrial Property Rights)] 磁性体アンテナ (2007)
  • Inventor(s): 高橋研他3名
  • Industrial Property Rights Holder: 東北大学,他2社
  • Industrial Property Number: 2007-067561
  • Filing Date: 2007-03-15