ナノスケール構造制御機能材料の開発

1993 Fiscal Year Annual Research Report

• Project/Area Number: 05NP0501
• Research Institution: Tohoku University
• Principal Investigator: 仁科 雄一郎 東北大学, 金属材料研究所, 教授 (90005851)
• Co-Investigator(Kenkyū-buntansha): 桜井 利夫 東北大学, 金属材料研究所, 教授 (20143539) ; 平井 敏雄 東北大学, 金属材料研究所, 教授 (50005865) ; 後藤 武生 東北大学, 理学部, 教授 (10004342) ; 鈴木 謙爾 東北大学, 金属材料研究所, 教授 (10005861)
• Keywords: ナノスケール組織 / 微粒子 / マイクロクラスター / ナノスケール構造 / クラスタービーム / 量子サイズ効果 / 薄膜成長 / 電子機能材料

Research Abstract

本研究は今年度も、5つの研究班と1つの評価班による研究組織で研究を実施した。先ず7月29、30の両日に評価班を含めた全体会議を行い、今年度の重点研究項目の確認と研究実施方法に関する具体的な討論を行った。成果発表は1月13、14の両日に行われた。
各研究班独自の研究及び各班間の協同研究により以下の研究成果が得られた。金属ナノ粒子の研究では金属マトリックス中にナノスケールの磁性体微粒子を分散させた各種グラニュラー物質を作成し、その物性の特徴を明らかにして、材料特性の最適化を試みた。具体的には、Fe/Ag、Fe/Cuグラニュラー物質を作製し、その物性と構造解析を多角的測定により行った。その結果、磁気的パーコレーションが生じる組成で、電気抵抗の急激な変化と磁気抵抗の最大が達成されることが明らかになり、磁気抵抗効果の最適化に関する重要な知見が得られた。ナオ粒子の光学非線形の研究では既に完成した非線形光学測定装置を用いてCuCl、BiI_3、Ge、CdTgナノ粒子のポンププローブ分光を低温で行った。CuClについては、ナノ粒子特有の大きな光学非線形性が励起子分子の生成により生じることを明かにし、励起子数の増減により非線形感受率の大小を制御出来ることを確かめた。新物質として結晶質、非晶質材料に続く第3の材料と言われる準結晶をとりあげ、従来報告のない強磁性を示す準結晶を初めて作製することに成功した。Al-Pd-Mn-B系準結晶では最高60emn/gの磁化率が得られた。準結晶の構造と化学組成の解析には本研究で開発された原子配列同定アトムプローブ分析法の有効性が確認された。固体表面又包接化合物内に担持されたナノ粒子の研究では、IV族、VI族マイクロクラスターやフラーレン格子の電子状態、カーボンナノカプセル中のFe、Ni微粒子の形態および磁性、ゼオライト中のアルカリ金属磁性等において数々の新しい材料的機能が見出された。

Research Products

• [Publications] E.Asami: "On the Unusual Morphology of Pitting Corrosion of Amorphous Ni-Zr Alloys Alloys by Mechanical Rod Milling" Corros.Sci.34. 445-459 (1993)
• [Publications] K.Asami: "The Surface Characterization of Titanium and Titanium-Nickel Alloys in Sulfuric Acid" Corros.Sci.35. 43-49 (1993)
• [Publications] K.Asami: "Oxidation Behavior of Amorphous Zr-Ni Alloys in Air" Proc.Symp.on Corrosion,Electrochemistry and Catalysis of Metatable Metals and Intermetallics. 236-239 (1993)
• [Publications] T.Ejima: "Electronic Structure of UC Studies by X-ray Photoemission and Bremsstrahlung Isochromatt Spectroscopies" Physica. B186-188. 77-79 (1993)
• [Publications] T.Ejima: "XPS and BIS Spectra of U_3T_3X_4(T=Ni,Cu and X=Sn,Sb)" Physica. B186-188. 86-88 (1993)
• [Publications] T.Ejima: "Electronic Structure of Doped C_<60>:Strong Correlation or Lattice Distrosion" Physica. B186-188. 1068 (1993)
• [Publications] T.Goto: "Tl/Cu-NMR Study on TlBa_2CaCu_2O_<7-d>(Tl1212)" dvanced in Superconductors. V. 515-520 (1993)
• [Publications] B.-L.G: "The Orientational Influence on the Electronic Structure of the Solid" Sci.Rep.RITU. A38. 1-6 (1993)
• [Publications] T.Hihara: "Heavy Fermion Characteristics in Amorphous and Crystallized Ce_<66>Si_<34> Alloys" Physica. B186-188. 466-468 (1993)
• [Publications] T.Hihara: "Kondo Behaviour in Ce-Si Amorphous Alloys," J.Phys.Cond.Matt.5. 8425-8436 (1993)
• [Publications] T.Hihara: "Makgnetic Properties of Iron in Nanocapsules," Jpn.J.Appl.Phys.33. L24-L25 (1994)
• [Publications] S.Hino: "Photoemission Spectra of a Higher Fullerene Compounds C_<82> and its Pottasium Complex" Synth.Metals. 55-57. 3191-3195 (1993)
• [Publications] S.Hino: "Ultraviolet Photoelectron Spectra of C_<82> and K_xC_<82>" Phys.Rev.B48. 8418-8423 (1993)
• [Publications] G.Hohl: "Intermediate Valent Yb in Amorphous(Yb_xCe_<1-x>)_Y Cu Alloys," I Magn & Magn Mat.128. 289-294 (1993)
• [Publications] Y.Homma: "Coherent Kondo State in Amorphous Ce-Ru Alloy," J.Phys.Soc.Jpn.62. 1442-1445 (1993)
• [Publications] Y.Homma: "Superconductivity of Amorphous Ce-82at%Ru Alloy" Physica. B186-188. 261-263 (1993)
• [Publications] X.Xu: "Simulation of Sol-Gel Transitions of Silica-Glasses Based on a New Couster-Cluster Aggregation Model" Proc.Int.Conf.on Computer Assisted Materials Design and Process. 153-158 (1993)
• [Publications] A.Ito: "Photo-Induced Polymerzation and Oxidation of Solid C_<60> Studied by Photoelectron Spectroscopy" Chem.Phys.Lett.211. 333-336 (1993)
• [Publications] E.Ivanov: "Mechanically Induced Vlence Fluctuation and New FCC Phase Formation in the Immiscible Yb-Ce Alloy System," J.Alloys and Compounds. 198. 105-109 (1993)
• [Publications] F.Kakinuma: "Neutron Diffraction Study of Liquid Bi-Se Alloys" J.Non Cryst.Solids. 156/158. 76-79 (1993)
• [Publications] F.Kakinuma: "Specific Heat of Liquid S-Te Mixtures" J.Non-Cryst.Solids. 156/158. 691-694 (1993)
• [Publications] F.Kakinuma: "Molar Volume and Compressibility of the Liquid Sb-Se System" J.Non-Cryst.Solide. 160. 228-233 (1993)
• [Publications] F.Kakinuma: "A Thermodynamical Study of Metal-Nonmetal Transition in Chalcogenide Liquid Alloys" Z.Metallkunde. 84. 534-540 (1993)
• [Publications] H.Kamiyama: "Classical MD Simulation and Ab-Initio Mixed-Basis Band Calculation of C_<60> Adsorbed on Si(100)surface" Sci.Rep.RITU. A38. 7-14 (1993)
• [Publications] H.Kamiyama: "Ab-Initio Mixed-Basis Molecular Dynamice Simulation of C_<60> Adsorbed on Si(100)Surface" Proc.Computer Aided Innovation Nwe Materials II. 143-146 (1993)
• [Publications] H.Katayama-Yoshida: "Similarity and Dissimilarity of Doped Fullerenes and Oxide Superconductor from the Viewpoint of Electronic Structure" J.Phys.Chem Solids. 54. 1817-1824 (1993)
• [Publications] S.Kawamata: "Magnetic Phase Transitions in Uni_<1-x>Pd_xGe and UPd_<1-Y>Pt_YGe" Physica. B186-188. 741-743 (1993)
• [Publications] Y.Kawazoe: "Structure of Layered C_<60> and C_<70> on Si(100)Surface Studied by Ab-Initio and Classical Molecular Dynamaics Simulations" Mat.Sci.Eng.B19. 165-171 (1993)
• [Publications] Y.Kawazoe: "Electronic Structure of LayeredC_<60> and C_<70> on Si(100)Surface" Jpn.J.Appl.Phys.32. 1433-1437 (1993)
• [Publications] K.J.Kim: "Structural and Calorimetric Studies of Amorphous Cu_<71>Ni_<11>P_<18>Alloy" J.Non-Cryst.Solids,. 155. 165-170 (1993)
• [Publications] K.J.Kim: "Structure and Magnetic Properties of Mechanically Grinded gamma′-Fe_4N" 粉体おおび粉末治金. 40. 303-306 (1993)
• [Publications] S.H.Kim: "Local Structure Changes around Cu Atoms in the Early Stage of Nanocrystalline Formation of Amorphous Fe_<73.5>Cu_1Nb_3Si_<13.5>B_9" Jpn.J.Appl.Phys.32. 676-678 (1993)
• [Publications] K.J.Kim: "Structure and Magnetic Properties of Fe_4N-Fe Alloys Produced by Mechanical Milling" J.Allys and Compounds. 203. 169-176 (1994)
• [Publications] H.Kimura: "The Oxidation of Amorphous Zr-Based Binary Allyos in Air" Corros.Sci.35. 909-915 (1993)
• [Publications] M.Kudoh: "New Cluster-Cluster Aggregation Model for Formation Proces of Fractal Structure in Sol-Gel Transition of SiO_2" J.Cryst.Growth. 128. 1162-1165 (1993)
• [Publications] S.A.Makhlouf: "A Mossbauer Study of Fe Clusters Grown in Ag Matrix," Nuclear Instr.& Methods in Phys.Res.B76. 197-198 (1993)
• [Publications] S.M.Maklouf: "Formation of Nominal Ni Amorphous Phase by Mechanical Milling and Leaching" J.Alloys and Compounds. 199. 119-124 (1993)
• [Publications] S.A.Makhlouf: "Giant Magnetoresistance of Fe-Cluster-Dispersed Ag Films," J.Magn.& Mngn.Mat.126. 485-488 (1993)
• [Publications] Y.Maruyama: "Full-Potential Mixed-Basis Simulated Annealing Calculation of C_<60>" Sci.Rep.RITU. A38. 15-18 (1993)
• [Publications] H.Miki: "Magnetic Structure of Itinerant Electron Antiferromagnets Mn_<3-x>T_xSi(T=Cr,Fe)" Proc.5th Int.Symp.on Advanced Nuclear Energy Research. Vol.2. 475-477 (1993)
• [Publications] N.Momozawa: "Fied Induced Commensulate Intermediate Phases in Helimagnet (Ba_<1-x>Sr_x)_2Zn_2Fe_<12>O_<22>(x=0.748)" J.Phys.Soc.Jpn.73. 1292-1304 (1993)
• [Publications] T.Morikawa: "Electronic Structure of K_xC_<60>.Studied by High-Energy.Resolved Low Temperature Photoemission Spectroscopy" Solid State Commun.87. 1017-1012 (1993)
• [Publications] Y.Mouri: "Computer Simulation of the Deformation of Nanocrystals" Proc.Computer Aided Innovation of the New Mterials II. 335-338 (1993)
• [Publications] A.Murata: "Magnetic Ordering in DyNi_2Si_2 and DyNi_2Ge_2 Intermetallics Studied by ^<161>Dy Mossbauer Spectroscopy" Hyperfine Intoract.78. 457-461 (1993)
• [Publications] H.Niida: "Crystal Distortion and Weak Ferromagnetism of Mn_<3-> Ga_<1-x>Ge_x Alloys" J.Appl.Phys.73. 5692-5694 (1993)
• [Publications] K.Nishioka: "Interfacial Thermodynamics of Non-Critical Clusters and Homogeneous Nucleation in Muolti-Component Systems" J.Cryst,Growth. 128. 1157-1181 (1993)
• [Publications] K.Nishioka: "Transient Nucleation in Binary Vapor of Water and Sulfuric Acid" J.Chem.Phys.100. 532-540 (1994)
• [Publications] 西岡一水: "多成分系核生成における非臨界核生成可逆仕事と臨界核の条件" まてりあ. 33. 223-230 (1994)
• [Publications] K.Ohno: "Monte Carlo Simulation of Many-Arm Star Plymers on Massibely Parallel Computer" Proc.Int.Conf.on Computer Assisted Material Design and Process Simulation. 480-485 (1994)
• [Publications] T.Ono: "Magnetic Properties in Intermetallic Compounds DyMn_2(Si_<1-x>Ge_x)_2(0<X<1)" J.Mang.& Magn.Mat.123. 133-140 (1993)
• [Publications] H.Onodera: "^<161>Dy Mossbauer Spectroscopic Study on Magnetic Properties of Pseudo-Ternary DyMn_2(Si_<1-x>Ge_x)_2 Compounds" J.Magn.& Magn.Mat.124. 96-104 (1993)
• [Publications] H.Onodera: "Magnetic Properties of Ternary DyMn_2X_2 Compounds(X=Si and Ge)" Sci.Rep.RITU. A38. 171-178 (1993)
• [Publications] H.Onodera: "Magnetic Sructures in DyMn_2(Si_<0.1>Ge_<0.9>)_2 Intermetallics Studied by ^<161>Dy Mossbauer Spectroscopy" Nncl.Instr.Meth.Phys.Res.B76. 55-56 (1993)
• [Publications] H.Onodera: "Magnetometric and Mossbauer Studies on Magnetic Properties of Pseudo-Ternary Y(Co_<1-x>Fe_x)_4B (0<X<0.35)" J.Magn.& Magn.Mat.127. 298-306 (1993)
• [Publications] H.Onodera: "^<161>Dy Mossbauer Study on Magnetic Property in DyZn_2 Intermetallics" Hyperfine Interact.78. 451-455 (1993)
• [Publications] M.Ohashi: "Magnetic Ordering in Competing Interaction State of Ternary Intermetallics DyMn_2 and DyMn_2Ge_2" Proc.5th Int.Symp.Advanced Nuclear Energy Research. JAERI-M. 404-409 (1993)
• [Publications] S.Purwanto: "Magnetic Order in Ternary Compounds TbMn_2Si_2 and TbMn_2Ge_2" Proc.5th Symp.Advanced Nuclear Energy Research. JAERI-M. 447-454 (1993)
• [Publications] H.Rafii-Tabar: "Dynamics of Atomic Monolayer-Surface Interaction in Tip-Substrate Geometry" Jpn.J.Appl.Phys.32. 1394-1400 (1993)
• [Publications] H.Rafii-Tabar: "Influence of Cluster Size on the Nano-Mechanics of Tip-Subtrate" Proc.Computer Aided Innovation of New Materials II. 627-630 (1993)
• [Publications] H.Rafii-Tabar: "Dynamics of C_<60> Buckeyballs on Si(100)Surface" Proc.Int,Conf.on Computer Assisted Materials Design and Process Simulation. 261-265 (1993)
• [Publications] H.Rafii-Tabar: "Stability of the Fullerenes Thin Film Deposited on the Si(100)Surface" Mat.Res.Soc.Symp Proc. Vol.308. 467-471 (1993)
• [Publications] J.Sakurai: "Thermoelectric Power of Amorphous Ce-Cu Alloys.," Physiea. B186-188. 569-570 (1993)
• [Publications] M.Sakurai: "An EXAFS Study of tahe Local Structure around Fe Atoms in Fe-Mg Multilayer Film" J.Magn.& Magn.Mat.126. 214-217 (1993)
• [Publications] Y.Saito: "Iron Particles Nesting in Carbon Cages Grown by Arc Discharge," Chem.Phys.Lett.212. 379-383 (1993)
• [Publications] Y.Saito: "Cobalt Particles Wrapped in Graphitic Carbon Prepared by an Arc Discharge Method," J.Appl.Phys.75. 134-137 (1994)
• [Publications] Y.Saito: "Synthesis of Sc_<15>C_<19> Crystallites Encapsulated in Carbon Nanocapsules by Arc Evaporation of Sc-C Composite," Jpn.J.Appl.Phys.33. L186-L189 (1994)
• [Publications] K.Shigemura: "Stress Formula for Atomic Models of Crystals in Computer Simulation" Proc.Computer Aided Innovation of the New Materials II. 339-342 (1993)
• [Publications] T.Shinohara: "NMR Study on Al_<75-x>Pd_<15>Mn_<10+x> Quasicrystalline Alloys with x =0.2 and 5" Mater.Trans.JIM. 34. 146-150 (1993)
• [Publications] T.Shinohara: "NMR Studies on Qusicrysatl Al_<70>Cu_<20>Tm_<10>(Tm:Cr,Mn,Fe and Co)" Sci.Rep.RITU. A38. 34-42 (1993)
• [Publications] T.Shinohara: "An NMR Studies of the New Strong Magnetism in Quasicrystalline Al-Pd-Mn-B System" J.Phys,:Cond.Matter. 5. 3673-3680 (1993)
• [Publications] T.Shinohara: "NMR Study of Ni_3Al with B nd C Addition" J.Mater.Res.8. 1285-1290 (1993)
• [Publications] T.Shinohara: "^<27>Al-and ^<63>Cu-NMR in Quasicrystalline Al_<65>Cu_<20>TM_<15> Alloys" J.Mater.Res.7. 1970-1972 (1992)
• [Publications] K.Sumiyama: "Nonequilibrium f.c.c.Phase and Valence Fluctuation in Immiscible Yb-Ce Alloy Produced by Mechanical Alloying" J.Alloys and Compounds,. 192. 251-252 (1993)
• [Publications] K,Sumiyama: "Mossbauer Effect of Amorphous Fe-Cu-Ag Alloy," Nuclear Instr.& Methods in Phys.Res.B76. 33-34 (1993)
• [Publications] K.Sumiyama: "Heavy Fermion Behaviors of Amorphous Ce_9Cu_<91> Alloy in High Magnetic Fields," Sci.Rept.RITU. A38. 330-337 (1993)
• [Publications] K.Sumiyama: "Hierarchy of Nonequilibrium Phases in The Immiscible Fe-Cu-Ag Alloy System," Acta Metall.Mater.41. 2487-2495 (1993)
• [Publications] K.Sumiyama: "Electron Transport Properties in Ce-Based Amorphous Heavy Fermion Systems" Physica. B186-188. 242-244 (1993)
• [Publications] K,Sumiyama: "Electron Microscope Observation of Ag Clusters Produced by the Ion-Cluster-Beam Method," Mater.Trans.JIM. 34. 646-650 (1993)
• [Publications] 隅山謙治: "メソスコピック材料" 金属(アグネ). 63 No.7. 38-44 (1993)
• [Publications] K.Suzuki: "A Heavy Fermion-Type Behavior of Ce-Based Amorphous Alloys," J.Non-Cryst.Solids. 156-158. 328-331 (1993)
• [Publications] K.Suzuki: "The Medium-and Short-Range Collective Atomic Motion in Pd-Si(Ge) Amorphous Alloys" J.Non-Cryst.Solids. 156/158. 58-62 (1993)
• [Publications] T.Suzuki: "Magnetic Structure of Fe_<1/3>NbS_2" Proc.5th Int.Symp.on Advanced Nuclear Energy Research. Vol.2. 345-346 (1993)
• [Publications] K.Suzuki: "Purification of Uranium Metal" Jpn.J.Appl.Phys.32. 15-19 (1993)
• [Publications] K.Suzuki: "Local Structure Evolution in Hydrogen-Induced Amorphization of YFe_2 and YNi_2 Laves Phases" J.Alloys Compounds. 193. 7-10 (1993)
• [Publications] K.Suzuki: "Medium-Range Structure Variations in the Solid State Amorphizing Local Structure Evolution in Hydrogen-Induced Amorphization of YFe_2 and YNi_2 Laves Phases" J.Alloys Compounds. 194. 303-309 (1993)
• [Publications] K.Murata: "Itinerant Electron Metamagnetism and a Large Decrease in the Electronic Specific Heat Coefficient of Laves Phase Compounds Lu(Co_<1-x>Ga_x)_2" J.Phys.Condons.Matter. 5. 1525-1534 (1993)
• [Publications] S.Suzuki: "Photoemission and Bremsstrahlun from Uranium Compounds" Jpn.J.Appl.Phys.32S8. 59-80 (1993)
• [Publications] T.Takahashi: "Photoemmission Study of Supercondutive and Nonsuperconductive Alkali-Doped C_<60> and C_<70>" Mat.Sci.Eng.B19. 117-121 (1993)
• [Publications] T.Takahashi: "Bulk and Surface Electronic States of High-Tc Superconductors:Photomission Study of Fermi Surface and Superconduting Gap" Proc.1993 Int.Workshop on Superconductivity. 37-40 (1993)
• [Publications] N.Tusnoda: "An EXAFS Study of Short-Range Structure of Amorphous Pd-Ti Alloys" Mater.Trans.JIM. 34. 397-403 (1993)
• [Publications] F.Wastin: "Influence of the Synthesis Mode on Electronic Properties of Ce-Ni Amorphous Alloys" Physica. B186-188. 563-565 (1993)
• [Publications] T.Yokota: "Superconducting Energy Gap in Bi_2Sr_2CLaCu_2O_8 Observed by High-Resolution Photoemission Spectroscopy" Solid State Commun.87. (1993)
• [Publications] S.Suto: "Vibrational modes of C_<60> fullerene on Si(100)2x1 Surface" Journal of Electron Spectrocopy and Related Phenamena. 64/65. 877-882 (1993)
• [Publications] T.Kodaira: "Optical properties of potassium clusters incorporated into 2eolite LTA" Physical Review B. 48. 12245-12252 (1993)
• [Publications] Y.Nozue: "Ferromagnetic properties of potassium clusters incorporated into 2eolite LTA" Physical Review B. 48. 12253-12261 (1993)
• [Publications] S.Saito: "Resorant Raman Scattering of PbI_2 microcrystallites in E-MAA copolymer" Jounal of Luminescence. 739. (1994)
• [Publications] T.Goto: "Exciton study in PbI_2 microcrystallites by Pump-probe methad" Solid State Communications. 89. 17-21 (1994)
• [Publications] A.Kasuya: "COLLSION ENHANCED DECOMPOSITION OF MICROCLUSTERS ABLATED FROM Si SURFACE BY EXCIMER LASER IRRADIATION IN GAS ENVIRONMENT" Mat.Res.Soc.Symp.Proc.285. 111-116 (1993)
• [Publications] A.Kasuya: "Space / Time spectroscopic Analysis of Laser Vaporization Process from SiTarget under Gas Environment" Physics and chemistry of Finite System. B19. 435-440 (1992)
• [Publications] 隅山謙次: "日本金属学会セミナー「ナノスケール組織制御材料」金属クラスター-分子とバルク固体の狭間-" 日本金属学会, 6 (1993)