Development of 3D self-organized Fe spin-nano-cluster bulk for soft magnetic material

• Project/Area Number: 23360132
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Electronic materials/Electric materials
• Research Institution: Tohoku University
• Principal Investigator: OGAWA Tomoyuki 東北大学, 工学(系)研究科(研究院), 助教 (50372305)
• Co-Investigator(Kenkyū-buntansha): SATO Tetsuya 慶應義塾大学, 理工学学部, 教授 (20162448)
• Project Period (FY): 2011-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥19,760,000 (Direct Cost: ¥15,200,000、Indirect Cost: ¥4,560,000); Fiscal Year 2013: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2012: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000); Fiscal Year 2011: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
• Keywords: 電子・電気材料 / 純鉄 / スピンナノクラスター / 自己組織化 / 軟磁気特性

Research Abstract

Fe Spin-Nano-Cluster (Fe-SNC) with high saturation magnetization and their self-organized assembly were fabricated for soft magnetic material. As a result, by applying a surfactant with weak absorption ability, Fe-SNCs with high saturation magnetization over 200 emu/g are successfully synthesized, which is due to promoting formation of bcc phase. And Fe-SNC self-organized assembly shows low coercivity 1.7 Oe, which is originated from enhanced strong magnetic dipole interaction between Fe-SNCs.

Research Products

• [Journal Article] Fast magnetic response in gigahertz-band for columnar-structured Fe nanoparticle assembly (2014)
  • Author(s): T. Ogawa, H. Kura, R. Tate, T. Oikawa and K. Hata
  • Journal Title: Journal of Applied Physics Volume: 115 Issue: 17
  • DOI: 10.1063/1.4863940
  • Peer Reviewed
• [Journal Article] Improve of Saturation Magnetization of Fe Nanoparticles by Additive Surfactant with Weak Adsorption Ability (2012)
  • Author(s): 鎌田真之, 藏裕彰, 高橋研, 小川智之, 田中寿郎
  • Journal Title: Journal of the Magnetics Society of Japan Volume: 36 Issue: 5 Pages: 309-312
  • DOI: 10.3379/msjmag.1209R001
  • NAID: 130002112220
  • ISSN: 1882-2924, 1882-2932
  • Peer Reviewed
• [Journal Article] Direct synthesis of single crystalline α-Fe nanoparticles with high saturation magnetization by mixed surfactant (2012)
  • Author(s): M. Kamata
  • Journal Title: IEEE Trans. Magn. Volume: 48 Issue: 11 Pages: 3944-3946
  • DOI: 10.1109/tmag.2012.2197737
  • Peer Reviewed
• [Journal Article] Fe(CO)5熱分解法を用いた単分散Feナノ粒子の広域粒径制御 (2012)
  • Author(s): 小川智之
  • Journal Title: 日本磁気学会誌 Volume: 36 Pages: 202-208
  • NAID: 130002112342
  • Peer Reviewed
• [Journal Article] Effect of Magnetic Dipole Interaction on Magnetic Properties of Fe Nanoparticle Assemblies (2011)
  • Author(s): 蔵裕彰, 館龍, 高橋研, 小川智之
  • Journal Title: Journal of the Magnetics Society of Japan Volume: 35 Issue: 3 Pages: 203-210
  • DOI: 10.3379/msjmag.1104R007
  • NAID: 130000677004
  • ISSN: 1882-2924, 1882-2932
  • Peer Reviewed
• [Journal Article] Spin-glasslike behavior of magnetic ordered state originating from strong interparticle magnetostatic interaction in α-Fe nanoparticle agglomerate (2011)
  • Author(s): K. Hiroi, H. Kura, T. Ogawa, M. Takahashi and T. Sato
  • Journal Title: Appl. Phys. Lett Volume: 98 Issue: 25
  • DOI: 10.1063/1.3602313
  • Peer Reviewed
• [Journal Article] Effect of nucleation and growth dynamics on saturation magnetization of chemically synthesized Fe nanoparticles (2011)
  • Author(s): T.Ogawa
  • Journal Title: Journal of Magnetics Volume: VOL16 Issue: 3 Pages: 308-311
  • DOI: 10.4283/jmag.2011.16.3.308
  • Peer Reviewed
• [Journal Article] 磁気双極子相互作用がFeナノ粒子集合体の磁気特性に及ぼす影響 (2011)
  • Author(s): 蔵裕彰
  • Journal Title: 日本磁気学会誌 Volume: 35巻 Pages: 203-210
  • Peer Reviewed
• [Presentation] Fast magnetic response in GHz-band for columnar-structured Fe nanoparticle assembly (2013)
  • Author(s): T. Ogawa, H. Kura, R. Tate, T. Oikawa, K. Hata and M. Takahashi
  • Organizer: 58th Annual Conference on Magnetism and Magnetic Materials
  • Place of Presentation: Denver, USA
• [Presentation] Low-temperature chemical synthesis of size and phase controlled Fe-based nanoparticles with high saturation magnetization (2013)
  • Author(s): T. Ogawa and H. Kura
  • Organizer: 8th International Conference on Fine Particle Magnetism (ICFPM-2013)
  • Place of Presentation: Perpignan, France
• [Presentation] Ferromagnetic behavior of film-form assembly of α-Fe nanoparticles with strong interparticle dipolar interaction (2013)
  • Author(s): K. Hiroi, H. Kura, T. Ogawa and T. Sato
  • Organizer: 8th International Conference on Fine Particle Magnetism (ICFPM-2013)
  • Place of Presentation: Perpignan, France
• [Presentation] Fast magnetic response in GHz-band for columnar-structured Fe nanoparticle assembly (2013)
  • Author(s): T. Ogawa
  • Organizer: 58th Annual Conference on Magnetism and Magnetic Materials (MMM 2013)
  • Place of Presentation: Denver, USA
• [Presentation] Size control of iron oxide nanoparticles by Ar bubble flow rate (2013)
  • Author(s): D. Y. Kim
  • Organizer: The 3rd International Symposium on Advanced Magnetic Materials and Applications (ISAMMA2013)
  • Place of Presentation: Taichung, Taiwan
• [Presentation] Direct synthesis of single crystalline a-Fe nanoparticles with high saturation magnetization by mixed surfactant (2012)
  • Author(s): M. Kamata, H. Kura, M. Takahashi, T. Ogawa and T. Tanaka
  • Organizer: IEEE International Magnetics Conference (INTERMAG 2012)
  • Place of Presentation: Vancouver, Canada
• [Presentation] Fast Magnetic Response of Chemically Synthesized Fe-based Magnetic Nanoparticle Assembly for High Frequency Devices (2011)
  • Author(s): T.Ogawa
  • Organizer: International Conference on Materials for Advanced Technologies (ICMAT 2011)
  • Place of Presentation: Singapore, Suntec(招待講演)
  • Year and Date: 2011-06-26
• [Presentation] Fast Magnetic Response of Chemically Synthesized Fe-based Magnetic Nanoparticle Assembly for High Frequency Devices (2011)
  • Author(s): T. Ogawa and M. Takahashi
  • Organizer: International Conference on Materials for Advanced Technologies (ICMAT 2011)
  • Place of Presentation: Suntec, Singapore
  • Invited
• [Presentation] Size and phase control of Fe nanoparticles with high saturation magnetization by tribenzylamine-trioctylamine mixed surfactant
  • Author(s): M. Kamata
  • Organizer: International Conference of the Asian Union of Magnetics Societies (ICAUMS2012)
  • Place of Presentation: Nara, Japan
• [Presentation] Single crystalline Fe nanoparticles with high saturation magnetization via chemical route using trioctylamine-tribenzylamine mixed surfactant
  • Author(s): M. Kamata
  • Organizer: Powder Metallurgy World Congress & Exhibition (PM2012 YOKOHAMA)
  • Place of Presentation: Yokohama, Japan
• [Presentation] Direct synthesis of single crystalline a-Fe nanoparticles with high saturation magnetization by mixed surfactant
  • Author(s): M. Kamata
  • Organizer: IEEE International Magnetics Conference (INTERMAG 2012)
  • Place of Presentation: Vancouver, Canada
• [Book] 「「純鉄ナノ粒子の低温化学合成の現状と展望」」, 機能材料 2013年 1月号, Vol.33, No.1, 特集 低温合成による新材料創製 -異分野横断で見える無機化学の可能性- (2013)
  • Author(s): 小川智之
  • Publisher: シーエムシー出版社
• [Book] 機能材料 特集 低温合成による新材料創製 －異分野横断で見える無機化学の可能性－ (2013)
  • Author(s): 小川智之
  • Publisher: シーエムシー出版
• [Patent(Industrial Property Rights)] 磁性誘電体材料 (2011)
  • Inventor(s): 小川智之, 他4名
  • Industrial Property Rights Holder: 東北大学, 他1機関
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2011-182162
  • Filing Date: 2011-08-24