Development of highly functionalized hybrid nano-cluster for ultra-high frequency range

• Project/Area Number: 19686020
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Electronic materials/Electric materials
• Research Institution: Tohoku University
• Principal Investigator: OGAWA Tomoyuki Tohoku University, 大学院工学研究科, 助教授 (50372305)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥25,870,000 (Direct Cost: ¥19,900,000、Indirect Cost: ¥5,970,000); Fiscal Year 2008: ¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000); Fiscal Year 2007: ¥13,910,000 (Direct Cost: ¥10,700,000、Indirect Cost: ¥3,210,000)
• Keywords: 磁性ナノ粒子 / コア-シェル / ハイブリッド / 自己組織化 / 高周波デバイス / コアーシェル

Research Abstract

磁性ナノ粒子をコアとし、シェル層でその表面を覆ったハイブリッドナノクラスターを中心に、新たな磁性複合材料の構築とGHz帯域高周波駆動デバイスへの応用展開の可能性を探った。理論的検討から、超常磁性ナノ粒子のGHz帯域の高周波駆動を新たに提案し、Feナノ粒子による実験的に実証を行った。また、高酸化耐性に優れたFeコア-貴金属シェル型ハイブリッドナノクラスターの合成技術の獲得や、高充填均一分散型磁性ナノ粒子複合材料を意図したシェル層厚の制御に成功した。

Research Products

• [Journal Article] Achieving a Non-interacting Magnetic Nanoparticle System through Direct Control of Interparticle Spacing (2009)
  • Author(s): H. Yang, D. Hasegawa, M. Takahashi, T. Ogawa
  • Journal Title: Appl. Phys. Lett. 94
  • Peer Reviewed
• [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, T. Ogawa
  • Journal Title: J. Magn. Magn. Mater. 321 Pages: 746-749
  • Peer Reviewed
• [Journal Article] Achieving a Noninteracting 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] Room temperature ferromagnetism in diluted magnetic semiconductor Zn1-xCrxTe nanoparticles synthesized by chemical method (2008)
  • Author(s): Y. Niwayama, H. Kura, T. Sato, M. Takahashi, T. Ogawa
  • Journal Title: Appl. Phys. Lett. 92
  • Peer Reviewed
• [Journal Article] Gram-scale synthesis of monodisperse Fe nanoparticles in one pot (2008)
  • Author(s): H. Yang, D. Hasegawa, S. Ozaki, T. Sato, M. Takahashi, T. Ogawa
  • Journal Title: Scripta Materialia. 58 Pages: 822-825
  • Peer Reviewed
• [Journal Article] Synthesis and magnetic properties of monodisperse magnetite nanocubes (2008)
  • Author(s): H. Yang
  • Journal Title: Journal of Applied Physics 103巻
  • Peer Reviewed
• [Journal Article] Gram-scale synthesis of monodisperse Fenanoparticles in one pot (2008)
  • Author(s): H. Yang
  • Journal Title: Scripta Materialia 58巻 Pages: 822-825
  • 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, F. Ito, D. Hasegawa, T. Ogawa, M. Takahashi
  • Journal Title: J. Appl. Phys. 101
  • Peer Reviewed
• [Journal Article] Shape-controlled synthesis of Fe nanoparticles with high-Ms via modest-temperaturereduction 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
• [Presentation] 超常磁性ナノ粒子集合体形成とその高周波磁気特性 (2008)
  • Author(s): 小川智之、高橋研
  • Organizer: 日本磁気学会 第163回研究会
  • Place of Presentation: 中央大学駿河記念館、東京
  • Year and Date: 2008-12-04
• [Presentation] Fast Superparamagnetic Response of Mono-Dispersed Fe Nanoparticle Assembly (2008)
  • Author(s): T. Ogawa, H. T. Yang, D. Hasegawa, M. Takahashi
  • Organizer: 53rd Annual Conference on Magnetism and Magnetic Materials (MMM 2008)
  • Place of Presentation: Austin, USA
  • Year and Date: 2008-11-12
• [Presentation] Fast Superparamagnetic Response of Mono-Dispersed Fe Nanoparticle Assembly (2008)
  • Author(s): T. Ogawa
  • Organizer: 53^<rd> Annual Conference on Magnetism and Magnetic Materials
  • Place of Presentation: オースチン(アメリカ)
  • Year and Date: 2008-11-12
• [Presentation] "Challenge of ultra high frequency limit of permeability for magnetic nanoparticle assembly with organic polymer" ~ Application of Superparamagnetism ~ (2008)
  • Author(s): M. Takahashi, D. Hasegawa, T. Ogawa
  • Organizer: Moscow International Symposium on Magnetism (MISM-2008)
  • Place of Presentation: Moscow, Russia
  • Year and Date: 2008-06-23
• [Presentation] Monodisperse Magnetite Nanocubes: synthesis, phase transfer, magnetic properties (2007)
  • Author(s): H. Yang, T. Ogawa, D. Hasegawa, M. Takahashi
  • Organizer: 52nd Annual Conference on Magnetism and Magnetic Materials (MMM 2007)
  • Place of Presentation: Tampa, USA
  • Year and Date: 2007-11-08
• [Presentation] M. Takahashi, M. Tsunoda, S. Saito, T. Ogawa (2007)
  • Author(s): "Tailor-Made Nano Structured Materials for Highly Qualified Spin Related Devices" - Exchange Coupling and Spin Dynamics -
  • Organizer: The 7th IEEE International Conference on Nanotechnology (IEEE-NANO 2007)
  • Place of Presentation: Hong Kong, China
  • Year and Date: 2007-08-03
• [Presentation] Effect of magnetostatic interaction on susceptibility of superparamagnetic Fe nanoparticles in nonmagnetic matrix (2007)
  • Author(s): T. Ogawa, F. Ito, D. Hasegawa, H. Yang, M. Takahashi
  • Organizer: The 1st International Symposium on Advanced Magnetic Materials and Applications (ISAMMA 2007)
  • Place of Presentation: Jeju, Korea
  • Year and Date: 2007-05-30
• [Presentation] "Effect of magnetostatic interaction on susceptibility of superp aramagnetic Fe nanoparticles in nonmagnetic matrix" (2007)
  • Author(s): T. Ogawa
  • Organizer: The 1st International Symposium on Advanced Magnetic Materials and Applications (ISAMMA 2007)
  • Place of Presentation: 韓国 新羅ホテル
  • Year and Date: 2007-05-30
• [Patent(Industrial Property Rights)] 磁性ナノ粒子の飽和磁化向上 (2007)
  • Inventor(s): 小川智之、 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)] 磁性ナノ粒子の飽和磁化向上 (2007)
  • Inventor(s): 小川智之
  • Industrial Property Rights Holder: 東北大学
  • Industrial Property Number: 2007-233739
  • Filing Date: 2007-09-10