1992 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, 助手 (90225681) 熊川征司静岡大学, 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) 小川智哉学習院大学, 理学部, 教授 (50080437) 小松啓東北大学, 金属材料研究所, 教授 (00108565)
Keywords	固液界面 / その場観察 / 結晶成長観察 / 界面構造
Research Abstract	成長を続けている結晶界面と接する環境相は、成長機構を支配する最も重要な部分と考えられる。しかし、この環境相の果たしている役割を実験的かつ定量的に解析する試みは現在までほとんどない。本研究ではX線回析、トンネル顕微鏡、光学分光、SEM-EPMA,光学および電子顕微鏡、熱測定などの方法により、固液界面付近の組成・構造の変化をその場で直接観察し定量測定することによって、結晶成長に及ぼす環境相の影響を原子レベルで解明しようとするものである。本年度の研究は次の六つの方向から行われた。1)固液共存状態からの結晶成長(武居):時間分割高温X線解析装置を開発、完成し、それにより高温超伝導体の包晶反応を伴った結晶成長機構をその場解析した。その結果報告されている相関係に重大な誤りのあることが判明した。2)トンネル顕微鏡による成長表面の観察(小松):AFMにおいて水中観察法を新たに開発し、高さ方向の解析精度の飛躍的向上に成功した。3)ラマン分光法による成長界面の観察(小川):光ファイバーを用いて、成長界面でラマン分光を行なうシステムを完成し、KDP結晶の水溶液成長に伴う溶液構造の変化の測定に成功した。4)ゾル-ゲル法酸化物膜のエピタキシー(平野):ゾル-ゲル法により生じた非晶質状態の構造を制御する方法を開発し、それによりKTN単結晶膜のエピタキシャル成長に成功した。5)動的環境による結晶組成制御(熊川):多元系混晶半導体結晶の融液成長において、外部より超音波や反転回転などの激しい擾乱を導入することにより、均一組成化しうることがわかった。6)非晶質からの準結晶の成長(蔡):急冷法で作成した非晶質合金が熱処理によって結晶化する状況をDSCにより測定し、その動力学的な解析によって、核発生時における粘性が重要であることを明らかにした。これらの成果は、結晶成長時の環境相の解明に大いに有用と考えられる。

Research Products

(27 results)

All Other

All Publications (27 results)

[Publications] H.Takei et al.,: "Growth and propreties of Li-deficient lithium vanadium dioxide single crystals" Materials Res.Bull.27. 555-562 (1992)
[Publications] T.Akamatsu et al.: "Pressure effect on the divalent cation distribution in nonideal solid solution of forsterite and fayalite" Phys.Chem.Minerals.
[Publications] C.K.Suzuki et al.,: "X-ray topographic characterization of α-Fe_2O_3 single crystals grown by the flux method" J.Crystal Growth.
[Publications] K.Imai et al.,: "Preparation,Crystal structure and magnetic property of a new compound LiCuO_2" J.Phys.Soc.Jpn.61. 1819-1820 (1992)
[Publications] H.Takei: "Growth of large polyhedral single crystals of YBa_2Cu_3Ox" Jpn.J.Appl.Phys.,Series 7,. 7. 71-75 (1992)
[Publications] S.Shin et al.,: "Observation of the local magnetic moment in the Mott transition of V_2O_3 by means of 3d photoemission" Phys.Rev.,B,. 46. 9224-9227 (1992)
[Publications] J.Bernhard et el.,: "Magnetic properties and crystal structure of ErRh_3B_2" J.Metals and Alloys.
[Publications] W.J.Jang: "Some properties of La_2-xSrxNiO_4(x=0 to 0.3)single crystals" The Phys.Chem.Oxide Superconductors. 53-56 (1992)
[Publications] H.Asaoka: "Growth of large isometric YBa_2Cu_3Ox single crystals from coexisted region of solid with melt in Y_2O_3 cruclbles" Jpn.J.Appl.Phys.32. (1993)
[Publications] C.K.Suzuki et al.: "High perfection α-Fe_2O_3 crystals for nuclear Bragg scattering" Rev.Sci.Instr.63. 1206-1209 (1992)
[Publications] K.Imai et al.,: "Structural change in rhombohedral single crystals Li_1-xVO_2 (x=0.2)" J.Solid State Chem.,. 102. 277-280 (1993)
[Publications] T,Inoue et al.: "Conversion of superconducting Bi-system single crystals form 2212 to 2223 by the annealing method" J.Crystal Growth. 123. 615-618 (1992)
[Publications] Y.Aoki et al.,: "Liquidus-and eutectic-temperature measurements of Al-rich alloys containing Cu and Si in a magnetic field" J.Crystal Growth. 123. 313-316 (1992)
[Publications] J.Takemoto et al.,: "Superconducting Bi_2Sr_2CaCu_2O_<8+>x single filems growm on SrTiO_3 substrate by the liquid phase epitaxial method" Jpn.J.Appl.Phys.
[Publications] H.Komatsu et al.,: "Comparison of AFM and Nanoscale optical microscope for measuring step heights" Jpn.J.Appl.Phys.
[Publications] S.Hirano: "Sol-Gel processing and characterization of ferroelectric films" Ceram.Trams.25. 19-32 (1992)
[Publications] S.Hirano: "Preparation of strontium barium niobate by sol-gel method" J.Amer.Ceram.Soc.75. 1697-1700 (1992)
[Publications] S.Hirano: "Preparation of Potasium Tantalate niobate by sol-gelmethod" J.Amer.Ceram.Soc.75. 1701-1704 (1992)
[Publications] S.Hirano: "Preparation of β-BaB_2O_4 powfers and thin films by sol-gel method" J.Amer.Ceram.Soc.75. 2590-2592 (1992)
[Publications] S.Hirano: "Sol-gel processing of advanced ceramics by molecular level designing" EUROGEL. 91. 19-35 (1992)
[Publications] S.Hirano: "Chemical processing of ferroelectric niobate epitaxial films" Mat.Res.Symp.Proc.271. 331-338 (1992)
[Publications] M.Kumagawa et al.,: "Effect of ultrasonic vibrations on the growth of InxGa_1-xSb mixed crystals (III)" Jpn.J.Appl.Phys.,suppl.31. S23-S25 (1992)
[Publications] Y.Hayakawa et al.,: "Influence of the solute convection on InGaSb LPE layers growm on vertically mounted GaSb substrates" J.Crystal Growth.
[Publications] T.Ogawa: "A phenomenological study on crystal growth from aqueous solution" Progress in Crystal Growth and Characterization.
[Publications] T.Ogawa et al.,: "Optical characterization of Si wafers for ULST" Materials Sci.and Engineering.
[Publications] Lu Taijin et al.,: "Characterization of extremely thin epitaxial layers and films by new interference fringes" J.Materials Res.7. 2182-2185 (1992)
[Publications] K.Sakai et al.,: "A study on IR light intensities scattered form defects in In-doped GaAs crystals as functions of wavelength and--" Jpn.J.Appl.Phys.31. 2954-2958 (1992)

1992 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] H.Takei et al.,: "Growth and propreties of Li-deficient lithium vanadium dioxide single crystals" Materials Res.Bull.27. 555-562 (1992)

[Publications] T.Akamatsu et al.: "Pressure effect on the divalent cation distribution in nonideal solid solution of forsterite and fayalite" Phys.Chem.Minerals.

[Publications] C.K.Suzuki et al.,: "X-ray topographic characterization of α-Fe_2O_3 single crystals grown by the flux method" J.Crystal Growth.

[Publications] K.Imai et al.,: "Preparation,Crystal structure and magnetic property of a new compound LiCuO_2" J.Phys.Soc.Jpn.61. 1819-1820 (1992)

[Publications] H.Takei: "Growth of large polyhedral single crystals of YBa_2Cu_3Ox" Jpn.J.Appl.Phys.,Series 7,. 7. 71-75 (1992)

[Publications] S.Shin et al.,: "Observation of the local magnetic moment in the Mott transition of V_2O_3 by means of 3d photoemission" Phys.Rev.,B,. 46. 9224-9227 (1992)

[Publications] J.Bernhard et el.,: "Magnetic properties and crystal structure of ErRh_3B_2" J.Metals and Alloys.

[Publications] W.J.Jang: "Some properties of La_2-xSrxNiO_4(x=0 to 0.3)single crystals" The Phys.Chem.Oxide Superconductors. 53-56 (1992)

[Publications] H.Asaoka: "Growth of large isometric YBa_2Cu_3Ox single crystals from coexisted region of solid with melt in Y_2O_3 cruclbles" Jpn.J.Appl.Phys.32. (1993)

[Publications] C.K.Suzuki et al.: "High perfection α-Fe_2O_3 crystals for nuclear Bragg scattering" Rev.Sci.Instr.63. 1206-1209 (1992)

[Publications] K.Imai et al.,: "Structural change in rhombohedral single crystals Li_1-xVO_2 (x=0.2)" J.Solid State Chem.,. 102. 277-280 (1993)

[Publications] T,Inoue et al.: "Conversion of superconducting Bi-system single crystals form 2212 to 2223 by the annealing method" J.Crystal Growth. 123. 615-618 (1992)

[Publications] Y.Aoki et al.,: "Liquidus-and eutectic-temperature measurements of Al-rich alloys containing Cu and Si in a magnetic field" J.Crystal Growth. 123. 313-316 (1992)

[Publications] J.Takemoto et al.,: "Superconducting Bi_2Sr_2CaCu_2O_<8+>x single filems growm on SrTiO_3 substrate by the liquid phase epitaxial method" Jpn.J.Appl.Phys.

[Publications] H.Komatsu et al.,: "Comparison of AFM and Nanoscale optical microscope for measuring step heights" Jpn.J.Appl.Phys.

[Publications] S.Hirano: "Sol-Gel processing and characterization of ferroelectric films" Ceram.Trams.25. 19-32 (1992)

[Publications] S.Hirano: "Preparation of strontium barium niobate by sol-gel method" J.Amer.Ceram.Soc.75. 1697-1700 (1992)

[Publications] S.Hirano: "Preparation of Potasium Tantalate niobate by sol-gelmethod" J.Amer.Ceram.Soc.75. 1701-1704 (1992)

[Publications] S.Hirano: "Preparation of β-BaB_2O_4 powfers and thin films by sol-gel method" J.Amer.Ceram.Soc.75. 2590-2592 (1992)

[Publications] S.Hirano: "Sol-gel processing of advanced ceramics by molecular level designing" EUROGEL. 91. 19-35 (1992)

[Publications] S.Hirano: "Chemical processing of ferroelectric niobate epitaxial films" Mat.Res.Symp.Proc.271. 331-338 (1992)

[Publications] M.Kumagawa et al.,: "Effect of ultrasonic vibrations on the growth of InxGa_1-xSb mixed crystals (III)" Jpn.J.Appl.Phys.,suppl.31. S23-S25 (1992)

[Publications] Y.Hayakawa et al.,: "Influence of the solute convection on InGaSb LPE layers growm on vertically mounted GaSb substrates" J.Crystal Growth.

[Publications] T.Ogawa: "A phenomenological study on crystal growth from aqueous solution" Progress in Crystal Growth and Characterization.

[Publications] T.Ogawa et al.,: "Optical characterization of Si wafers for ULST" Materials Sci.and Engineering.

[Publications] Lu Taijin et al.,: "Characterization of extremely thin epitaxial layers and films by new interference fringes" J.Materials Res.7. 2182-2185 (1992)

[Publications] K.Sakai et al.,: "A study on IR light intensities scattered form defects in In-doped GaAs crystals as functions of wavelength and--" Jpn.J.Appl.Phys.31. 2954-2958 (1992)

武居文彦東京大学, 物性研究所, 教授 (60005981)