Fabrication of Hard Magnetic Alloy Nanoparticles by Vapor-Deposition and Their Electron Diffraction Structure Analysis and Magnetic Property Measurements

• Project/Area Number: 16106008
• Research Category: Grant-in-Aid for Scientific Research (S)
• Allocation Type: Single-year Grants
• Research Field: Physical properties of metals
• Research Institution: Osaka University
• Principal Investigator: HIROTSU Yoshihiko Osaka University, 産業科学研究所, 招へい教授 (70016525)
• Co-Investigator(Kenkyū-buntansha): SATO Kazuhisa 東北大学, 金属材料研究所, 助教 (70314424) ; ISHIMARU Manabu 大阪大学, 産業科学研究所, 准教授 (00264086) ; HIRATA Akihiko 大阪大学, 産業科学研究所, 助教 (90350488) ; MAKINO Akihiro 東北大学, 金属材料研究所, 教授 (30315642)
• Project Period (FY): 2004 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥110,240,000 (Direct Cost: ¥84,800,000、Indirect Cost: ¥25,440,000); Fiscal Year 2008: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000); Fiscal Year 2007: ¥14,430,000 (Direct Cost: ¥11,100,000、Indirect Cost: ¥3,330,000); Fiscal Year 2006: ¥14,430,000 (Direct Cost: ¥11,100,000、Indirect Cost: ¥3,330,000); Fiscal Year 2005: ¥29,380,000 (Direct Cost: ¥22,600,000、Indirect Cost: ¥6,780,000); Fiscal Year 2004: ¥43,420,000 (Direct Cost: ¥33,400,000、Indirect Cost: ¥10,020,000)
• Keywords: L10型規則合金 / 硬質磁性ナノ粒子 / 方位配向 / 2次元孤立分散 / 超常磁性臨界サイズ / 規則不規則変態 / 規則度 / ナノビーム電子回折 / 規則合金ナノ粒子 / 硬質磁性 / 規則度のサイズ依存性 / FePd / FePt / ナノ粒子格子歪 / 結晶磁気異方性 / FeCuPt / FeCoPd / 低温合成 / ALCHEMI法 / FePtZrB / エピタキシャル成長 / 電子線構造解析 / 磁気特性評価 / L1_0型規則相 / 高密度分散 / 添加元素 / FePtCu / FePdCu

Research Abstract

L10-Fe系規則合金ナノ粒子の粒子サイズ分散の少ないナノ粒子膜を合成し、硬質磁気特性が得られる臨界粒子サイズと規則構造形成臨界サイズとの相関を詳細に調べ、超高密度磁気記録媒体材料への応用に必要となる知見を得た。また、この種のL10-ナノ粒子分散膜の低温合成、垂直磁化膜の合成などの成果も得られた。

Research Products

• [Journal Article] Electron microscopy study of L10-FePtCu nanoparticles synthesized at 613 K (2009)
  • Author(s): Y. Hirotsu, H. W. Ryu, K. Sato, and M. Ishimaru
  • Journal Title: J. Microscopy (in press)
• [Journal Article] Atomic structure imaging of L10-type FePd nanoparticles by spherical aberration corrected high-resolution transmission electron microscopy (2009)
  • Author(s): K. Sato, T. J. Konno, and Y. Hirotsu
  • Journal Title: J. Appl. Phys 105(3) Pages: 1-34308
• [Journal Article] Atomic structure imaging of Ll_0-type FePd nanoparticles by spherical aberration corrected high-resolution transmission electron microscopy (2009)
  • Author(s): K. Sato, T. J. Konno, Y. Hirotsu
  • Journal Title: J. Appl. Phys. 105(3)
  • Peer Reviewed
• [Journal Article] Structural and magnetic properties of L10-FeCoPt nanoparticles prepared by rf-sputtering (2008)
  • Author(s): A. Kovacs and Y. Hirotsu
  • Journal Title: Applied Physics A 93(2) Pages: 543-547
• [Journal Article] Fabrication of L10-FeCoPd nanocrystalline particles with tilted magnetic easy axis (2008)
  • Author(s): A. Kovacs and Y. Hirotsu
  • Journal Title: Appl. Phys. Lett 91(19)
• [Journal Article] Structural and magnetic properties of Ll_0-FeCoPt nanoparticles prepared by rf-sputtring (2008)
  • Author(s): A. Kovacs, Y. Hirotsu
  • Journal Title: J. Appl. Phys. A 93 Pages: 543-547
  • Peer Reviewed
• [Journal Article] Ll_0型FePd規則合金ナノ粒子の長範囲規則度 (2008)
  • Author(s): 佐藤和久, 弘津禎彦
  • Journal Title: 日本結晶学会誌 50(4) Pages: 262-268
  • Peer Reviewed
• [Journal Article] High-resolution transmission electron microscopy analysis of L10 ordering process in Fe/Pd thin layers (2007)
  • Author(s): A. Kovacs, K. Sato and Y. Hirotsu
  • Journal Title: J. Appl. Phys 102(12)
• [Journal Article] Low-Temperature Atomic Ordering of Oriented L10-FePtCu Nanoparticles with High Areal-Density Characterized by Transmission Electron Microscopy and Electron Diffraction (2007)
  • Author(s): H. W. Ryu, K. Sato and Y. Hirotsu
  • Journal Title: Mater. Trans 48(5) Pages: 903-908
  • NAID: 130004453594
• [Journal Article] Improvement of Structural and Magnetic Properties of L10-FePd nanocrystals by Co addition (2007)
  • Author(s): A. Kovacs, K. Sato and Y. Hirotsu
  • Journal Title: IEEE Trans. Magn 43(6) Pages: 3097-3099
• [Journal Article] Particle size dependence of atomic ordering and magnetic properties of L10-FePd nanoparticles (2007)
  • Author(s): H. Naganuma, K. Sato and Y. Hirotsu
  • Journal Title: J. Magn. Magn. Mater 310(2) Pages: 2356-2358
• [Journal Article] Magnetic properties and microstructure of FePt-M-B(M=Zr, Nb, La) films (2007)
  • Author(s): H. Okumura, S. Nishinakagawa, T. Bitoh, A. Makino, K. Sato and Y. Hirotsu, J. Magn
  • Journal Title: Magn. Mater 310(2) Pages: 2527-2528
• [Journal Article] Strong perpendicular magnetic anisotropy of Fe-Pd nanocrystalline particles enhanced by Co addition (2007)
  • Author(s): A. Kovacs, K. Sato
  • Journal Title: J.Appl. Phys 101(3)
  • NAID: 120003728686
• [Journal Article] Low-temperature synthesis of oriented L10-FePtCu nanoparticles with high coercivity (2007)
  • Author(s): H. W. Ryu, K. Sato and Y. Hirotsu
  • Journal Title: Solid State Phenomena 124-126, 855-858
• [Journal Article] Direct synthesis of isolated L10-FePtCu nanoparticles by rf-magnetron sputtering (2007)
  • Author(s): H. W. Ryu, K. Sato and Y. Hirotsu
  • Journal Title: Phenomena 127 Pages: 129-133
• [Journal Article] Structure and magnetic properties of nanocrystalline Pd-Co and Pd-Co-Fe layers (2007)
  • Author(s): A. Kovacs, K. Sato and Y. Hirotsu
  • Journal Title: Solid State Phenomena 124-126 Pages: 907-910
• [Journal Article] Magnetic Properties and Structure of Fe-Pt-M-B (M=Zr, Nb and Ti) Alloys Produced by Quenching Technique (2007)
  • Author(s): A. Makino, T. Bitoh, A. Inoue and Y. Hirotsu
  • Journal Title: J. Alloys and Comp 434-435 Pages: 614-617
• [Journal Article] Melt-Spun L10 Fe-Pt-(Zr, Nb and Ti)-B Nanocrystalline Alloys with High Coercivity (2007)
  • Author(s): A. Makino, T. Bitoh, A. Inoue and Y. Hirotsu
  • Journal Title: Mater. Sci. Eng. A 449-451 Pages: 66-70
• [Journal Article] Direct Synthesis of Isolated L1_0-FePtCu Nanoparticles by RF-Magnetron Sputtering (2007)
  • Author(s): H. W. Ryu, K. Sato and Y. Hirotsu
  • Journal Title: Solid State Phenom. 127 Pages: 129-134
  • Peer Reviewed
• [Journal Article] Magnetic Properties and Structure of Fe-Pt-M-B (M=Zr, Nb and Ti) alloys Produced by Quenching Technique (2007)
  • Author(s): A. Makino, T. Bitoh, A. Inoue and Y. Hirotsu
  • Journal Title: J. Alloys and Comp. 434-435 Pages: 614-617
  • Peer Reviewed
• [Journal Article] Melt-Spun L1_0-FePt (Zr, Nb and Ti) B Nanocrystalline Alloys with High Coercivity (2007)
  • Author(s): A. Makino, T. Bitoh, A. Inoue and Y. Hirotsu
  • Journal Title: Mater. Sci. Eng. A449-451 Pages: 66-70
  • Peer Reviewed
• [Journal Article] Fabrication of L1_0-PdCoFe Nanocrystalline Particles with Tilted Magnetic Easy Axis (2007)
  • Author(s): A. Kovacs and Y. Hirotsu
  • Journal Title: Appl. Phys. Lett. 91 Pages: 1931061-1931063
  • Peer Reviewed
• [Journal Article] High Resolution TEM Analysis of L1_0 Ordering Process in Fe/Pd Thin Layers (2007)
  • Author(s): A. Kovacs, K. Sato and Y. Hirotsu
  • Journal Title: J. Appl. Phys. 102
  • Peer Reviewed
• [Journal Article] Low-Temperature Atomic Ordering of Oriented L1_0-FePtCu Nanoparticles with High Areal-Density Characterized by Trans mission Electron Microscopy and Electron Diffraction (2007)
  • Author(s): H. W. Ryu, K. Sato and Y. Hirotsu
  • Journal Title: Mater. Trans. 48 Pages: 903-908
  • Peer Reviewed
• [Journal Article] Magnetic properties and microstructure of FePt-M-B (M=Zr, Nb, La) films. (2007)
  • Author(s): H. Okumura, S. Nishinakagawa, T. Bitoh, A. Makino, K. Sato and Y. Hirotsu
  • Journal Title: J. Magn. Magn. Mater. 310 Pages: 2527-2528
  • Peer Reviewed
• [Journal Article] Particle size dependence of atomic ordering and magnetic properties of L1_0-FePd nanoparticles. (2007)
  • Author(s): H. Naganuma, K. Sato, Y. Hirotsu
  • Journal Title: J. Magn. Magn. Mater. 310 Pages: 2356-2358
  • Peer Reviewed
• [Journal Article] Low-Temperature Synthesis of Oriented L1_0-FePtCu Nanoparticles with High Coercivity (2007)
  • Author(s): H.W.Ryu, K.Sato, Y.Hirotsu
  • Journal Title: Solid State Phenomena 124-126 Pages: 855-858
• [Journal Article] Strong perpendicular magnetic anisotropy of Fe-Pd nanocrystalline particles enhanced by Co addition (2007)
  • Author(s): A.Kovacs, K.Sato, Y.Hirotsu
  • Journal Title: Journal of Applied Physics 101
  • NAID: 120003728686
• [Journal Article] Structure and magnetic properties of nanocrystalline Pd-Co and Pd-Co-Fe layers (2007)
  • Author(s): A.Kovacs, K.Sato, Y.Hirotsu
  • Journal Title: Solid State Phenomena 124-126 Pages: 907-910
• [Journal Article] Improvement of structural and magnetic properties of L10-FePd nanocrystals by Co addition (2007)
  • Author(s): A.Kovacs, K.Sato, Y.Hirotsu
  • Journal Title: IEEE Transactions on Magnetics (In press)
• [Journal Article] Fabrication of oriented L10-FeCuPd and composite bcc-Fe/L10-FeCuPd nanoparticles : alloy composition dependence of magnetic properties (2006)
  • Author(s): H. Naganuma, K. Sato and Y. Hirotsu
  • Journal Title: J. Appl. Phys 99(8)
• [Journal Article] Order-disorder transformation in L10-FePd nanoparticles studied by electron diffraction (2006)
  • Author(s): K. Sato and Y. Hirotsu
  • Journal Title: Mater. Trans 47(1) Pages: 59-62
  • NAID: 130004452936
• [Journal Article] Direct Synthesis of Oriented High-Density Islands of L1_0-FePtCu Alloy at 613K (2006)
  • Author(s): W.H.Ryu, H.Naganuma, K.Sato, Y.Hirotsu
  • Journal Title: Japanese Journal of Applied Physics 45
  • NAID: 10017996458
• [Journal Article] Perpendicular Magnetic Anisotropy of Epitaxially Grown L1_0-FePdCu Nanoparticles with Preferential c-Axis Orientation (2006)
  • Author(s): H.Naganuma, K.Sato, Y.Hirotsu
  • Journal Title: Jounal of Applied Physics 100
• [Journal Article] Fabrication of oriented L1_0-FeCuPd and composite bcc-Fe/L1_0-FeCuPd nanoparticles : Alloy composition dependence of magnetic properties (2006)
  • Author(s): H.Naganuma, K.Sato, Y.Hirotsu
  • Journal Title: Journal of Applied Physics 99(in press)
• [Journal Article] Order-disorder transformation in L1_0-FePd nanoparticles studied by electron diffraction (2006)
  • Author(s): K.Sato, Y.Hirotsu
  • Journal Title: Materials Transactions 47(1) Pages: 59-62
  • NAID: 10017151175
• [Journal Article] Long-range order parameter of single L10-FePd nanoparticle determined by nanobeam electron diffraction : Particle size dependence of the order parameter (2005)
  • Author(s): K. Sato, Y. Hirotsu, H. Mori, Z. Wang and T. Hirayama
  • Journal Title: J. Appl. Phys 98(2)
  • NAID: 120003728774
• [Journal Article] Growth and atomic ordering of hard magnetic L10-FePt, FePd and CoPt alloy nanoparticles studied by transmission electron microscopy : alloy system and particle size dependence (2005)
  • Author(s): Y. Hirotsu and K. Sato
  • Journal Title: J. Ceramic Processing Research 6(3) Pages: 236-244
• [Journal Article] Determination of order parameter of L10-FePd nanoparticles by electron diffraction (2005)
  • Author(s): K. Sato, Y. Hirotsu, H. Mori, Z. Wang and T. Hirayama
  • Journal Title: J. Appl. Phys 97(8)
  • NAID: 120003728660
• [Journal Article] Two dimensionally dispersed Fe/FePd nanocomposite particles synthesized by electron beam deposition (2005)
  • Author(s): Y. Hirotsu, K. Sato and J. Kawamura, Mate
  • Journal Title: Sci. Forum 502 Pages: 275-280
• [Journal Article] Order parameter analysis of L10-FePd particles by nano-beam electron diffraction (2005)
  • Author(s): K. Sato and Y. Hirotsu
  • Journal Title: Archives of Materials Science 26(1-2) Pages: 17-23
• [Journal Article] Long-range order parameter of single L1_0-FePd nanoparticle determined by nanobeam diffraction :_Particle size dependence of the order paramater (2005)
  • Author(s): K.Sato, Y.Hirotsu, H.Mori, Z.Wang, T.Hirayama
  • Journal Title: Journal of Applied Physics 98(2)
• [Journal Article] Determination of order parameter of L1_0-FePd nanoparticles by electron diffraction (2005)
  • Author(s): K.Sato, Y.Hirotsu, H.Mori, Z.Wang, T.Hirayama
  • Journal Title: Journal of Applied Physics 97(8)
• [Journal Article] L1_0型FePdナノ粒子の極微構造と長範囲規則度の粒径依存性 (2005)
  • Author(s): 佐藤和久, 弘津禎彦
  • Journal Title: 日本金属学会会報まてりあ 44(12) Pages: 988-988
  • NAID: 10017153177
• [Journal Article] 規則合金ナノ粒子の透過電子顕微鏡による構造解析と今後の展望 (2005)
  • Author(s): 佐藤和久
  • Journal Title: 日本金属学会会報まてりあ 44(5) Pages: 425-428
  • NAID: 10015702505
• [Journal Article] Determination of order parameter of L1_0-FePd nanoparticles by electron diffraction (2005)
  • Author(s): K.Sato, Y.Hirotsu, H.Mori, Z.Wang, T.Hirayama
  • Journal Title: Journal of Applied Physics 97(in press)
• [Journal Article] Structural characterization of oriented L10-FePd nanoparticles (2004)
  • Author(s): K. Sato and Y. Hirotsu
  • Journal Title: Trans. Mater. Res. Soc. Jpn 29(4) Pages: 1647-1650
• [Journal Article] Fabrication of exchange-coupled α-Fe/L10-FePd nanocomposite isolated particles (2004)
  • Author(s): J. Kawamura, K. Sato and Y. Hirotsu
  • Journal Title: J. Appl. Phys 96(7) Pages: 3906-3911
• [Journal Article] Magnetoanisotropy, long-range order parameter and thermal stability of isolated L10 FePt nanoparticles with mutual fixed orientation (2004)
  • Author(s): K. Sato and Y. Hirotsu
  • Journal Title: J. Magn. Magn. Mater 272-276 Pages: 1497-1499
• [Journal Article] The investigation of multiply twinned L10-type FePt nanoparticles by transmission electron microscopy (2004)
  • Author(s): A. Kovacs, K. Sato, G. Safran, P. B. Barna and Y. Hirotsu
  • Journal Title: Philos. Mag 84(20) Pages: 2075-2081
• [Journal Article] Fabrication of exchange-coupled a-Fe/L1_0-FePd nanocomposite particles (2004)
  • Author(s): J.Kawamura, K.Sato, Y.Hirotsu
  • Journal Title: Journal of Applied Physics 96 Pages: 3906-3911
• [Journal Article] Magnetoanisotropy, long-range order parameter and thermal stability of isolated L1_0 FePt nanoparticles with mutual fixed orientation (2004)
  • Author(s): K.Sato, Y.Hirotsu
  • Journal Title: Journal of Magnetism and Magnetic Materials 272-276 Pages: 1497-1499
• [Journal Article] The investigation of multiply twinned L1_0-type FePt nanoparticles by transmission electron microscopy (2004)
  • Author(s): A.Kovacs, K.Sato, G.Safran, P.B.Barna, Y.Hirotsu
  • Journal Title: Philosophical Magazine 84 Pages: 2075-2081
• [Journal Article] Structural characterization of oriented L1_0-FePd nanoparticles (2004)
  • Author(s): K.Sato, Y.Hirotsu
  • Journal Title: Transactions of the Materials Research Society of Japan 29 Pages: 1647-1650
• [Journal Article] 強磁性L1_0型規則合金ナノ粒子の構造と長範囲規則度 (2004)
  • Author(s): 佐藤和久, 弘津禎彦
  • Journal Title: 顕微鏡 39 Pages: 144-149
  • NAID: 10014163641
• [Journal Article] Electron microscopy study of Ll_0-FePtCu nanoparticles synthesized at 613 K
  • Author(s): Y. Hirotsu, H. W. Ryu, K. Sato, M. Ishimaru
  • Journal Title: J. Microscopy in press
• [Journal Article] He+Ion Irradiation-Induced Disordering in L1_0-FePd Thin Films: Ion Fluence Dependence
  • Author(s): A. Kovacs, Y. Hirotsu, D. G. Merket, F. Taneziko, L. Bottyan and S. Stankov
  • Journal Title: Scripta Mater. (in press)
  • Peer Reviewed
• [Presentation] Long-range order structure in L10-type FePd nanoparticles studied by HRTEM and electron diffraction (2008)
  • Author(s): K. Sato
  • Organizer: Seminar : Oxford Materials Electron Microscopy & Microanalysis Group
  • Place of Presentation: Hume-Rothery Lecture Theatre, University of Oxfor
  • Year and Date: 2008-09-08
• [Presentation] L10-structure formation of FePtCu nanoparticles at 613K uisng magnetron sputtering (2008)
  • Author(s): Y. Hirotsu, H. W. Ryu, K. Sato, M. Ishimaru
  • Organizer: 7th Polish-Japanese Joint Seminar on Micro and Nano Analysis
  • Place of Presentation: Warsaw
• [Presentation] Ll_0-structure formation of FePtCu nanoparticles at 613K using rf-sputtering (2008)
  • Author(s): Y. Hirotsu, H. W. Ryu, K. Sato, M. Ishimaru
  • Organizer: 7th Polish-Japanese Joint Seminar on Micro, Nano Analysis
  • Place of Presentation: Warsaw, Poland
• [Presentation] Low-temperature synthesis and structural characterization of oriented hard magnetic Ll_0-FePtCu nanoparticles (2008)
  • Author(s): H. W. Ryu, K. Sato, Y. Hirotsu
  • Organizer: 9th Asia-Pacific Microscopy Conference
  • Place of Presentation: Jeju, Korea
• [Presentation] Ll_0-type ordered structure of FePd nanoparticles studied by high-resolution transmission electron microscopy (2008)
  • Author(s): K. Sato, T. J. Konno, Y. Hirotsu
  • Organizer: 14th European Microscopy Congress
  • Place of Presentation: Aachen, Germany
• [Presentation] Determination of order parameter of single Ll_0-FePd nanoparticle by nanobeam electron diffraction (2008)
  • Author(s): K. Sato, Y. Hirotsu
  • Organizer: XXI Congress and General Assembly of the International Union of Crystallography
  • Place of Presentation: Osaka, Japan
• [Presentation] High-resolution TEM Observation of Ll_0-FePd nanoparticles (2008)
  • Author(s): K. Sato, T. J. Konno, Y. Hirotsu
  • Organizer: Microscopy and Microanalysis 2008
  • Place of Presentation: Albuquerque, USA
• [Presentation] Fabrication of oriented hard-magnetic alloy nanoparticles and their characterization (2007)
  • Author(s): Y. Hirotsu, K. Sato, A. Kovacs, H. Naganuma, H. W. Ryu
  • Organizer: The 1st International Symposium on Advanced Magnetic Materials and Applications
  • Place of Presentation: Jeju, Korea
• [Presentation] Fabrication of Oriented Hard-Magnetic Alloy Nanoparticles and Their Characterization (2007)
  • Author(s): Y. Hirotsu, K. Sato, A. Kovacs, H. Naganuma, H. W. Ryu
  • Organizer: ISAMMA2007
  • Place of Presentation: Jeju, Korea
• [Presentation] L1_0 ordering and order-disorder transformation in Pd-Co-Fe magnetic nanoparticles (2007)
  • Author(s): A. Kovacs, K. Sato, and Y. Hirotsu
  • Organizer: Internation Confbrence on Fine Particle Magnetism 16
  • Place of Presentation: Rome, Italy
• [Presentation] Fabrication of tilted magnetic easy axis L1_0-FeCoPd nanoparticles (2007)
  • Author(s): A. Kovacs, Y. Hirotsu
  • Organizer: MRS Fall Meeting
  • Place of Presentation: Boston, USA
• [Presentation] Atomic ordering and hard magnetic properties of L10-type FePtCu nanoparticles studied by transmission electron microscopy and electron diffraction (2006)
  • Author(s): Y. Hirotsu, H. W. Ryu, and K. Sato
  • Organizer: 6^<th> Japanese-Polish Joint Seminar on Materials Analysis-New developments and analysis for fabrication of functional nanostructure
  • Place of Presentation: Tateyama-Toyama
• [Presentation] Effects of additive elements on atomic ordering and hard magnetic properties of L10-type FePt and FePd alloy nanoparticles (2006)
  • Author(s): Y. Hirotsu, K. Sato, H. W. Ryu and A. Kovacs
  • Organizer: 48^<th> IUVSTA Workshop, Innovatial Training Course on "Influence of Trace Elements on the Nucleation and Growth of Thin Films"
  • Place of Presentation: Budapest, Hungary
• [Presentation] 電子回折によるL10型FePdナノ粒子の長範囲規則度とその粒径依存性 (2005)
  • Author(s): 佐藤和久
  • Organizer: 日本顕微鏡学会第50回シンポジウム
  • Place of Presentation: 九州大学
  • Year and Date: 2005-11-02
• [Presentation] ナノビーム電子回折によるL10-FePdナノ粒子の長範囲規則度測定 (2005)
  • Author(s): 佐藤和久, 弘津禎彦
  • Organizer: 日本顕微鏡学会第61回学術講演会
  • Place of Presentation: つくば国際会議場
  • Year and Date: 2005-06-03
• [Presentation] Fabrication and TEM characterization of hard magnetic ordered alloy nano-particles (2005)
  • Author(s): Y. Hirotsu and K. Sato
  • Organizer: 4^<th> 21^<st> Century COE "Towards Creating New Industries Based on Inter-Nanoscience" Int'l Symp
  • Place of Presentation: Toba
• [Presentation] Analysis of Oriented L10-FePt and FePd Nanoparticles (2004)
  • Author(s): Y. Hirotsu and K. Sato
  • Organizer: 日本応用磁気学会第28回学術講演会
  • Place of Presentation: 沖縄コンベンションセンター
  • Year and Date: 2004-09-21
• [Presentation] Two Dimensionally Dispersed Fe/FePd Nanocomposite Particles Synthesized by Electron Beam Deposition (2004)
  • Author(s): Y. Hirotsu, K. Sato and J. Kawamura
  • Organizer: International Conference on New Frontiers of Process Science and Engineering in Materials Science (PSEA'04)
  • Place of Presentation: Kyoto
• [Presentation] Growth and atomic ordering of hard magnetic L10-FePt, FePd and CoPt alloy nanoparticles studied by transmission electron microscopy (2004)
  • Author(s): Y. Hirotsu and K. Sato
  • Organizer: 2004 Fall Int'l Symposium on Crystal Growth and Devices
  • Place of Presentation: Seoul, Korea
• [Presentation] Structure and metallurgy of alloy nanoparticles in Fe-Pd system (2004)
  • Author(s): Y. Hirotsu and K. Sato
  • Organizer: L1_0 Ordered Intermetallic and Related Phases for Permanent Magnet and Recording Applications
  • Place of Presentation: Copper Mountain, Colorado, USA
• [Book] 材料開発のための顕微鏡法と応用写真集(分担執筆) (2006)
  • Author(s): 佐藤和久, 柳韓蔚, 弘津禎彦
  • Total Pages: 272
  • Publisher: 日本金属学会
• [Book] 材料開発のための顕微鏡法と応用写真集(分担執筆) (2006)
  • Author(s): 牧野彰宏, 尾藤輝夫, 弘津禎彦, 佐藤和久
  • Total Pages: 272
  • Publisher: 日本金属学会
• [Remarks]
  • URL: http://www.sanken.osaka-u.ac.jp/labs/scd/
• [Patent(Industrial Property Rights)] 磁性体粒子及びその製造方法 (2006)
  • Inventor(s): 弘津禎彦、Andras Kovacs、佐藤和久
  • Industrial Property Number: 2006-220037
  • Filing Date: 2006-08-11
• [Patent(Industrial Property Rights)] 磁性体粒子及びその製造方法 (2006)
  • Inventor(s): 弘津禎彦, アンドラス コバッチ, 佐藤和久
  • Industrial Property Rights Holder: 国立大法人, 大阪大学
  • Industrial Property Number: 2006-220037
  • Filing Date: 2006-08-11