Construction of charge density analysis system for strong correlated electron materials using synchrotron radiation X-ray diffraction method

同步辐射X射线衍射法强相关电子材料电荷密度分析系统的构建

• 批准号: 20244059
• 负责人: SAWA Hiroshi
• 金额: $ 23.88万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-20244059/
• 关键词: 強相関系; 放射光; 精密構造解析; 電子密度解析; 放射光X線回折; 電荷密度解析; 強相関電子系; 軌道/電荷秩序; 配列ナノ空間物資; 単結晶構造解析; 粉末構造決定; 軌道; 電荷秩序

As for the new diffractometer for single crystals at BL02B1 in SPring-8 started up by this project, it was verified that there is an enough performance in this facility. If it is an alloy system crystal at ten-micron cubic, the ultra high resolution measurement of ca. 0.2 Å in the reciprocal lattice space necessary for the precise structure analysis is possible. The introduction of the refrigerators was achieved by cooperation with SPring-8 facilities, and the measurement in the temperature range from 8K to 500K became available. In this research project, some typical molecular orbital analyses of the molecular conductor system and the charge or orbital ordered state had been achieved. It was also elucidated by using this beam line of the structural and physical properties of a metallic cation endohedral fullerene Li@C_<60>.

至于本项目启动的SPring-8的BL02B1单晶衍射仪，经验证，如果是十微米立方的合金系晶体，具有足够的超高分辨率性能。精确结构分析所需的倒晶格空间中的大约 0.2 Å 的测量是可能的。通过与 SPring-8 设施合作实现了冰箱的引入，并且在在该研究项目中，实现了分子导体系统和电荷或轨道有序态的一些典型分子轨道分析，还利用该束线阐明了金属的结构和物理性质。阳离子内嵌富勒烯Li@C_<60>。

项目成果

Epitaxially stabilized iridium spinel oxide without cations in the tetrahedral site

• DOI: 10.1063/1.3374449
• 发表时间: 2010-05
• 期刊: Applied Physics Letters
• 影响因子: 4
• 作者: H. Kuriyama;J. Matsuno;S. Niitaka;M. Uchida;D. Hashizume;A. Nakao;K. Sugimoto;H. Ohsumi;M. Takata;H. Takagi

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