1996 Fiscal Year Annual Research Report

レーザーMBEによる無機人工格子材料の創成と物性の研究

Research Project

Project/Area Number	07405055
Research Institution	Osaka University
Principal Investigator	川合知二大阪大学, 産業科学研究所, 教授 (20092546)
Co-Investigator(Kenkyū-buntansha)	金井真樹大阪大学, 産業科学研究所, 助手 (50243267) 田畑仁大阪大学, 産業科学研究所, 助手 (00263319) 松本卓也大阪大学, 産業科学研究所, 助手 (50229556)
Keywords	レーザMBE / 無機人工格子 / 原子層積層 / 酸化物結晶成長 / RHEED / STM
Research Abstract	平成7年度の研究結果をもとに、以下のような研究を行い、成果を得た。 1。STM(走査トンネル顕微鏡)による原子層積層過程の研究:レーザーMBEによる人工格子成長過程をSTMにより実空間で観察制御した。原子層分子層の格子定数、電荷が成長に与える影響を明らかにし、原子層積層成長の基本メカニズムを確立した。 2。人工格子系を硫化物系において行い、NiS,CuS層での人工格子を酸化物系と比較した。特に、アニオン(S,O)のエネルギー準位が異なる点での誘電及び伝導メカニズムに与える影響の比較を行った。その結果、酸化物人工格子形成においては、基板との格子定数の一致、電荷中性条件の保持、積層順序が最も重要な3つの要素であることが明らかになった。

Research Products
(16 results)

All Other

All Publications (16 results)

[Publications] H.Lee: "Preperation of Transition Metal Chalcogenide Thin Films by Pulsed Laser Ablation." Thin Solid Films. 277. 98-100 (1996)
[Publications] H.Nishikawa: "Laser Ablation of Alkaline Earth Metals Investigated by Time-of-Flight Mass Spectroscopy:Ion Desorption by Core-Electron Excitation" Jpn.J.Appl.Phys.35. L425-L428 (1996)
[Publications] T.Kawai: "Harmonic Integration of Functional Metal Oxide Artificial Lattices." Materials Sci.Eng.B. 41. 123-130 (1996)
[Publications] I.Kawayama: "Growth of SrCuO_2 Thin Film on Oxygen Annealed SrTiO_3(100)Substrate" Jpn.J.Appl.Phys.35. L926-L929 (1996)
[Publications] H.Nishikawa: "Time Resolved Studies of Ion Desorption from Ca Surfaces Using Double-pulse Laser Ablation Technique." Jpn.J.Appl.Phys.35. L985-L988 (1996)
[Publications] 川合知二: "セラミックス基礎工学講座複合化の科学と技術 VI.3機能性セラミックス薄膜の原子スケール積層複合化" セラミックス. 31. 46-49 (1996)
[Publications] H.Tanaka: "Molecular Dynamics Prediction of Structual anomalies in Ferroelectric and Dielectric BaTiO_3-SrTiO_3-CaTio_3 Solid Solution." Phys.Rev.B. 53. 14112-14116 (1996)
[Publications] H.Tanaka: "Controlling Factors on the Synthesis of Pd(Zr_xTi_<1-X>)O_3 Films." Thin Solid Films. (1996)
[Publications] O.Nakagawara: "Preparation and Electrical Properties of (Zr,Sn) TiO_4 Dielectric Thin Film by Pulsed Laser Deposition." J.Appl.Phys.80(1). 388-392 (1996)
[Publications] S.Hayamizu: "Preparation of Crystallized Zinc Oxide (ZnO) Films on Amorphous Glass Substrates by a Laser Ablation Technique." J.Appl.Phys.80(2). 787-791 (1996)
[Publications] K.Koguchi: "Probing of the Density of States near the Fermi Level in (Ca,Sr)CuO_2 Infinite Layer Thin Films by STM/STS." Physica C. 258. 47-52 (1996)
[Publications] H.Tanaka: "Surface Structure of Reduced SrTiO_3(111) Observed by Scanning Tunneling Microscopy." Surface Sci.365. 437-442 (1996)
[Publications] T.Kawai: "Novel Properties in Artificially Structured Di-and Ferro-electric Thin Films." J.Kor.Phys.Soc.29. S591-S593 (1996)
[Publications] H.Tabata: "Epitaxial Growth of Bi-Layered Structured Superlattce by a Pulsed Laser Deposition and Their Dielectric Properties." invited paper on Mat.Res.Soc.Symp.Proc.401. 73-84 (1996)
[Publications] Y.Shibata: "High Resolution X-ray Diffraction Analysis of Piezoelectric LiNbO_3 Films." Mat.Res.Soc.Symp.Proc.401. 273-278 (1996)
[Publications] H.Tabata: "Dielectric Properties of Strained (Sr,Ca)TiO_3/(Ba,Sr)TiO_3 Artificial Lattices." App.Phys.Lett.70. 321 (1997)

1996 Fiscal Year Annual Research Report

レーザーMBEによる無機人工格子材料の創成と物性の研究

Principal Investigator

川合 知二 大阪大学, 産業科学研究所, 教授 (20092546)

Research Products

[Publications] H.Lee: "Preperation of Transition Metal Chalcogenide Thin Films by Pulsed Laser Ablation." Thin Solid Films. 277. 98-100 (1996)

[Publications] H.Nishikawa: "Laser Ablation of Alkaline Earth Metals Investigated by Time-of-Flight Mass Spectroscopy:Ion Desorption by Core-Electron Excitation" Jpn.J.Appl.Phys.35. L425-L428 (1996)

[Publications] T.Kawai: "Harmonic Integration of Functional Metal Oxide Artificial Lattices." Materials Sci.Eng.B. 41. 123-130 (1996)

[Publications] I.Kawayama: "Growth of SrCuO_2 Thin Film on Oxygen Annealed SrTiO_3(100)Substrate" Jpn.J.Appl.Phys.35. L926-L929 (1996)

[Publications] H.Nishikawa: "Time Resolved Studies of Ion Desorption from Ca Surfaces Using Double-pulse Laser Ablation Technique." Jpn.J.Appl.Phys.35. L985-L988 (1996)

[Publications] 川合知二: "セラミックス基礎工学講座複合化の科学と技術 VI.3機能性セラミックス薄膜の原子スケール積層複合化" セラミックス. 31. 46-49 (1996)

[Publications] H.Tanaka: "Molecular Dynamics Prediction of Structual anomalies in Ferroelectric and Dielectric BaTiO_3-SrTiO_3-CaTio_3 Solid Solution." Phys.Rev.B. 53. 14112-14116 (1996)

[Publications] H.Tanaka: "Controlling Factors on the Synthesis of Pd(Zr_xTi_<1-X>)O_3 Films." Thin Solid Films. (1996)

[Publications] O.Nakagawara: "Preparation and Electrical Properties of (Zr,Sn) TiO_4 Dielectric Thin Film by Pulsed Laser Deposition." J.Appl.Phys.80(1). 388-392 (1996)

[Publications] S.Hayamizu: "Preparation of Crystallized Zinc Oxide (ZnO) Films on Amorphous Glass Substrates by a Laser Ablation Technique." J.Appl.Phys.80(2). 787-791 (1996)

[Publications] K.Koguchi: "Probing of the Density of States near the Fermi Level in (Ca,Sr)CuO_2 Infinite Layer Thin Films by STM/STS." Physica C. 258. 47-52 (1996)

[Publications] H.Tanaka: "Surface Structure of Reduced SrTiO_3(111) Observed by Scanning Tunneling Microscopy." Surface Sci.365. 437-442 (1996)

[Publications] T.Kawai: "Novel Properties in Artificially Structured Di-and Ferro-electric Thin Films." J.Kor.Phys.Soc.29. S591-S593 (1996)

[Publications] H.Tabata: "Epitaxial Growth of Bi-Layered Structured Superlattce by a Pulsed Laser Deposition and Their Dielectric Properties." invited paper on Mat.Res.Soc.Symp.Proc.401. 73-84 (1996)

[Publications] Y.Shibata: "High Resolution X-ray Diffraction Analysis of Piezoelectric LiNbO_3 Films." Mat.Res.Soc.Symp.Proc.401. 273-278 (1996)

[Publications] H.Tabata: "Dielectric Properties of Strained (Sr,Ca)TiO_3/(Ba,Sr)TiO_3 Artificial Lattices." App.Phys.Lett.70. 321 (1997)

川合知二大阪大学, 産業科学研究所, 教授 (20092546)