Creation and properties of inorganic artificial lattices by Laser MBE.

激光 MBE 无机人工晶格的创建和性能。

• 批准号: 07405055
• 负责人: KAWAI Tomoji
• 金额: $ 5.63万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07405055/
• 关键词: Laser MBE; inorganic artificial lattice; layr by layr; oxide crystal growth; RHEED; STM; レーザMBE

Based on the studies started from H.7 fiscal year, following results were obtained.1. The guide line for the growth of artificial lattices has been extented to the chalchogenides (selenides and tellurides) functional materials.2. In the artificial lattice structures, the relation between structural parameters and physical properties has been elucidated. In the dielectric artificial lattices, the following correlations have been found ; i.e.stacking periodicity, lattice strain and the two dimensional arrangements.In the conductive artificial lattices, the role of the periodicity of blocking layrs and the filling effect of charge reservoir layr was clalified. In the chalcogenide systems, the relation between band gap energies and photo-conversion efficiency were systematically understood.

基于从H.7财年开始的研究，获得了以下结果。人工晶格生长的指导思想已经延伸到了硫族化合物（硒化物和碲化物）功能材料.在人工晶格结构中，阐明了结构参数与物理性能之间的关系。在电介质人工晶格中，发现了堆积周期性、晶格应变和二维排列的关系，在导电人工晶格中，阐明了阻挡层的周期性和电荷储存层的填充效应的作用。在硫族化合物体系中，人们对带隙能量与光转换效率的关系有了系统的认识。

项目成果

H.J.Liu: "Hydrostatic-pressure effects on the a-axis resistance of monocrystalline Bi_<2.2>(Sr,Ca)_<2.8>Cu_2O_<8+y>" Phys.Rev.B. 50. 9167-9179 (1995)

H.J.Liu：“静水压力对单晶 Bi_<2.2>(Sr,Ca)_<2.8>Cu_2O_<8 y> a 轴电阻的影响”Phys.Rev.B。

H.Tabata: "Strained BaTiO_3 superlattices formed by a laser ablation technique and their high dielectric properties." Jpn.J.Appl.Phys.34 (No.2A). 544-547 (1995)

H.Tabata：“通过激光烧蚀技术形成的应变 BaTiO_3 超晶格及其高介电性能。”

Y.Inokuma: "Superconductivity of (La, A) MnO_3/Yba_2Cu_3O_y trilayr films (A=Sr, Ca)." Jpn.J.Appl.Phys.36. 7169-7172 (1997)

Y.Inokuma：“（La，A）MnO_3/Yba_2Cu_3O_y三层薄膜（A=Sr，Ca）的超导性。”

H.Tabata: "Strained BaTiO_3/SrTiO_3 superlattices formed by a laser ablation technique and their high dielectric properties." Jpn.J.Appl.Phys.34 No.2A. 544-547 (1995)

H.Tabata：“通过激光烧蚀技术形成的应变 BaTiO_3/SrTiO_3 超晶格及其高介电性能。”

R.Feenstra: "Superconductivity in Sr_<n+1>CunO_<2n+1+δ>"infinite layer"films induced by post-growth annealing" Appl.Phys.Lett.66. 2283-2285 (1995)

R. Feenstra：“生长后退火诱导的 Sr_<n+1>CunO_<2n+1+δ>“无限层”薄膜中的超导性”Appl.Phys.Lett.66 (1995)。