1993 Fiscal Year Annual Research Report

環境相と成長機構

Research Project

Project/Area Number	04227102
Research Institution	The University of Tokyo
Principal Investigator	武居文彦東京大学, 物性研究所, 教授 (60005981)
Co-Investigator(Kenkyū-buntansha)	蔡安邦東北大学, 金属材料研究所, 助教授 (90225681) 熊川〓司靜岡大学, 電子工学研究所, 教授 (30022130) 平野真一名古屋大学, 工学部, 教授 (30016828) 小川智也学習院大学, 理学部, 教授 (50080437) 小松啓東北大学, 金属材料研究所, 教授 (00108565)
Keywords	結晶成長機構 / 環境相 / その場観察 / 界面構造 / 界面カイネティクス / 溶液構造 / 溶液成長 / 結晶完全性
Research Abstract	本研究は以下の6つのグループに分れて行なわれた。(1)武居グループ:固体と液体が平衡共存する系での結晶成長を、新たに開発した時分割X線回折装置を用いて解析した。典型例として酸化物超伝導体を選び、動的観察・測定を行なった結果、包晶反応によって生じた生成物の液相拡散過程が成長を律速していることがわかった。(2)小松グループ:溶液からの結晶成長および溶解過程のその場観察のために、AFM(原子力顕微鏡)装置を開発し、方解石およびリゾチーム結晶の原子レベルでの成長・溶解を観察・測定することに成功した。(3)小川グループ:CCD受光素子を利用した光検出器と光ファイバーを組み合わせて、溶液内の微小部分のラマン散乱測定装置を開発した。この装置によりKH_2PO_4結晶の水溶液成長時における界面構造の微視的測定を行なったが、解像力の範囲内で特殊な構造を持つことはないと判断された。(4)平野グループ:ゾル-ゲル反応によって合成した金属アルコキシドの縮重合ゲル体を基板結晶に塗布し、その熱分解によって酸化物単結晶膜のエピタキシャル成長を起こさせることに成功した。熱分解過程を詳しく調べた結果、エピタキシーには前駆体の原子配置が極めて重要であることが明かとなった。(5)熊川グループ:III-V族4元系単結晶を、融液からの育成法を用いて作成し、その際に形成される組成不均一性について検討した。その結果、成長界面を通して構成元素の相互拡散が起こり、結晶内部でのドメイン形成を惹起すること、界面でのマクロステップの形成が界面破壊の引き金になること、などが判明した。(6)蔡グループ:液体急冷したAl-Cu-Vアモルファス合金の熱処理によって、単相の準結晶の成長が初めて見いだされた。これは、20面体クラスターから構成されるガラス相が適当に接続を変えて準結晶へ転換するものとして説明された。

Research Products

(29 results)

All Other

All Publications (29 results)

[Publications] T.Akamatsu: "Pressure effect on the divalent eation distribution in non-ideal solid solution of forsterite and fayalite" J.Phys.Chem.Minerals. 19. 431-444 (1993)
[Publications] J.Bernhard: "Magnetic properties and crystal structure of ErRh_<3.33>B_2" J.Metals and Alloys. 193. 295-297 (1993)
[Publications] K.Imai: "Strutural change in rhombohedral single crystal LiVO_2" J.Solid State Chem.102. 277-280 (1993)
[Publications] H.Asaoka: "Growth of large isometric YBa_2Cu_3O_x single crystals from coexisted region of solid with melt in Y_2O_3 crucibles" Jpn.J.Appl.Phys.32. 1091-1096 (1993)
[Publications] W.Utsumi: "Pressure effect on the crystal structure and electrical conductivity of LiCuO_2" J.Solid State Chem.107. 507-512 (1993)
[Publications] K.Imai: "Growth and crystal structure of LiCuO_2" J.Crystal Growth. 128. 808-812 (1993)
[Publications] C.K.Suzuki: "Flux growth and characterization of a-^<57>Fe_2O_3 single crystals for nulear Bragg scattering component" Jpn.J.Appl.Phys.32. 3900-3904 (1993)
[Publications] M.Suzuki: "A Raman scattering investigation of magnetic ordering in the two-dimensional triangular lattice antiferromagnet LiCrO_2" J.Phys.,Condens.Matter. 5. 4225-4232 (1993)
[Publications] H.Takei: "Crystal growth of Tl-based cuprate superconductors" Jpn.J.Appl.Phys.32. L1403-L1406 (1993)
[Publications] S.Yamamoto: "In-vacuum undulator in a 6.5GeV storage ring for producing brilliant 14.4KeV Mossbauer photons" J.Appl.Phys. 74. 500-503 (1993)
[Publications] H.Komatsu: "Comparison of atomic force microscopy and nanoscale optical microscopy for measuring step heights" Jpn.J.Appl.Phys.32. 1478-1479 (1993)
[Publications] J.Takemoto: "Superconducting Bi_2Sr_2CaCu_2O_8 single films grown on SrTiO_3 substrate by the liquid phase epitaxial method" Jpn.J.Appl.Phys.32. L403-L405 (1993)
[Publications] H.Komatsu: "Interferometric observation of the interfacial concentration gradient layers around a lysozyme crystal" Jpn.J.Appl.Phys.32. L1855-L1857 (1993)
[Publications] S.Miyashita: "Decomposition of BSCO(2212) phase studied by in-situ observation" Physica. C213. 283-286 (1993)
[Publications] M.Ataka: "Nucleation and growth of oxide precipitates in Cz Si wafers" J.Materials Res.8. 2889-2892 (1993)
[Publications] T.Ogawa: "Characterization of dielectric crystals by light scattering tomography" Ferroelectrics. 142. 19-29 (1993)
[Publications] T.Ogawa: "A phenomenological study on crystal growth from aqueous solution" Prog.in Crystal Growth and Characterization. 25. 578-585 (1993)
[Publications] T.Ogawa: "Optical characterization of Si wafers for ULSI" Mater.Sci.and Eng.B20. 172-174 (1993)
[Publications] L.Taijin: "Effect of surface structures on ultra-thin interface fringes" J.Mater.Res.7. 2182-2185 (1993)
[Publications] S.Hirano: "Hydrothermal growth of calcite single crystals in nitrate solutions" J.Ceram.Soc.Jpn.101. 113-117 (1993)
[Publications] S.Tajima: "Synthesis and properties of Fe_3C film by r.f. magnetron sputter" J.Mater.Sci.28. 2715-2720 (1993)
[Publications] S.Hirano: "Preparation and phase separation behavior of (Co,Fe)_3O_4 films" J.Am.Ceram.Soc.76. 1788-1792 (1993)
[Publications] S.Hirano: "Synthesis of nickel ferrite-dispersed carbon composites by pressure" J.Mater.Sci.28. 4073-4077 (1993)
[Publications] S.Hirano: "Study of crystallization of LiNbO_3 from metal alkoxide" J.Mater.Sci.28. 4188-4192 (1993)
[Publications] Y.Hayakawa: "Influence of the solute convection on InGaSb LPE layers on vertically mounted GaSb substrates" J.Crystal Growth. 128. 159-162 (1993)
[Publications] D.Kawase: "Crystallization on supercooled liquid in metallic Zr-Cu-Al glasses" Appl.Phys.Letters. 62. 137-139 (1993)
[Publications] A.P.Tsai: "Interface stability,growth and morphplogy of quasicrystals" J.Non-Cryst.Solids. 153/154. 513-518 (1993)
[Publications] A.P.Tsai: "Formation of quasicrystals through peritectoid reactions from a nonequilibrium cubic phase prepared by mechanical alloying" Phil.Mag.Letters. 67. 393-398 (1993)
[Publications] A.P.Tsai: "Crystallization mechanism and stabilization of supercooled liquid during heating in Zr-Cu based metallic glasses" Scripta Metall.29. 657-661 (1993)

1993 Fiscal Year Annual Research Report

環境相と成長機構

Principal Investigator

武居 文彦 東京大学, 物性研究所, 教授 (60005981)

Research Products

[Publications] T.Akamatsu: "Pressure effect on the divalent eation distribution in non-ideal solid solution of forsterite and fayalite" J.Phys.Chem.Minerals. 19. 431-444 (1993)

[Publications] J.Bernhard: "Magnetic properties and crystal structure of ErRh_<3.33>B_2" J.Metals and Alloys. 193. 295-297 (1993)

[Publications] K.Imai: "Strutural change in rhombohedral single crystal LiVO_2" J.Solid State Chem.102. 277-280 (1993)

[Publications] H.Asaoka: "Growth of large isometric YBa_2Cu_3O_x single crystals from coexisted region of solid with melt in Y_2O_3 crucibles" Jpn.J.Appl.Phys.32. 1091-1096 (1993)

[Publications] W.Utsumi: "Pressure effect on the crystal structure and electrical conductivity of LiCuO_2" J.Solid State Chem.107. 507-512 (1993)

[Publications] K.Imai: "Growth and crystal structure of LiCuO_2" J.Crystal Growth. 128. 808-812 (1993)

[Publications] C.K.Suzuki: "Flux growth and characterization of a-^<57>Fe_2O_3 single crystals for nulear Bragg scattering component" Jpn.J.Appl.Phys.32. 3900-3904 (1993)

[Publications] M.Suzuki: "A Raman scattering investigation of magnetic ordering in the two-dimensional triangular lattice antiferromagnet LiCrO_2" J.Phys.,Condens.Matter. 5. 4225-4232 (1993)

[Publications] H.Takei: "Crystal growth of Tl-based cuprate superconductors" Jpn.J.Appl.Phys.32. L1403-L1406 (1993)

[Publications] S.Yamamoto: "In-vacuum undulator in a 6.5GeV storage ring for producing brilliant 14.4KeV Mossbauer photons" J.Appl.Phys. 74. 500-503 (1993)

[Publications] H.Komatsu: "Comparison of atomic force microscopy and nanoscale optical microscopy for measuring step heights" Jpn.J.Appl.Phys.32. 1478-1479 (1993)

[Publications] J.Takemoto: "Superconducting Bi_2Sr_2CaCu_2O_8 single films grown on SrTiO_3 substrate by the liquid phase epitaxial method" Jpn.J.Appl.Phys.32. L403-L405 (1993)

[Publications] H.Komatsu: "Interferometric observation of the interfacial concentration gradient layers around a lysozyme crystal" Jpn.J.Appl.Phys.32. L1855-L1857 (1993)

[Publications] S.Miyashita: "Decomposition of BSCO(2212) phase studied by in-situ observation" Physica. C213. 283-286 (1993)

[Publications] M.Ataka: "Nucleation and growth of oxide precipitates in Cz Si wafers" J.Materials Res.8. 2889-2892 (1993)

[Publications] T.Ogawa: "Characterization of dielectric crystals by light scattering tomography" Ferroelectrics. 142. 19-29 (1993)

[Publications] T.Ogawa: "A phenomenological study on crystal growth from aqueous solution" Prog.in Crystal Growth and Characterization. 25. 578-585 (1993)

[Publications] T.Ogawa: "Optical characterization of Si wafers for ULSI" Mater.Sci.and Eng.B20. 172-174 (1993)

[Publications] L.Taijin: "Effect of surface structures on ultra-thin interface fringes" J.Mater.Res.7. 2182-2185 (1993)

[Publications] S.Hirano: "Hydrothermal growth of calcite single crystals in nitrate solutions" J.Ceram.Soc.Jpn.101. 113-117 (1993)

[Publications] S.Tajima: "Synthesis and properties of Fe_3C film by r.f. magnetron sputter" J.Mater.Sci.28. 2715-2720 (1993)

[Publications] S.Hirano: "Preparation and phase separation behavior of (Co,Fe)_3O_4 films" J.Am.Ceram.Soc.76. 1788-1792 (1993)

[Publications] S.Hirano: "Synthesis of nickel ferrite-dispersed carbon composites by pressure" J.Mater.Sci.28. 4073-4077 (1993)

[Publications] S.Hirano: "Study of crystallization of LiNbO_3 from metal alkoxide" J.Mater.Sci.28. 4188-4192 (1993)

[Publications] Y.Hayakawa: "Influence of the solute convection on InGaSb LPE layers on vertically mounted GaSb substrates" J.Crystal Growth. 128. 159-162 (1993)

[Publications] D.Kawase: "Crystallization on supercooled liquid in metallic Zr-Cu-Al glasses" Appl.Phys.Letters. 62. 137-139 (1993)

[Publications] A.P.Tsai: "Interface stability,growth and morphplogy of quasicrystals" J.Non-Cryst.Solids. 153/154. 513-518 (1993)

[Publications] A.P.Tsai: "Formation of quasicrystals through peritectoid reactions from a nonequilibrium cubic phase prepared by mechanical alloying" Phil.Mag.Letters. 67. 393-398 (1993)

[Publications] A.P.Tsai: "Crystallization mechanism and stabilization of supercooled liquid during heating in Zr-Cu based metallic glasses" Scripta Metall.29. 657-661 (1993)

武居文彦東京大学, 物性研究所, 教授 (60005981)