| Co-Investigator(Kenkyū-buntansha) |
大島 永康 国立研究開発法人産業技術総合研究所, 計量標準総合センター, 研究グループ長 (00391889)
角谷 正友 国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 主席研究員 (20293607)
石橋 章司 国立研究開発法人産業技術総合研究所, 材料・化学領域, 上級主任研究員 (30356448)
奥村 宏典 筑波大学, 数理物質系, 助教 (80756750)
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| Budget Amount *help |
¥50,700,000 (Direct Cost: ¥39,000,000、Indirect Cost: ¥11,700,000)
Fiscal Year 2020: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2019: ¥13,520,000 (Direct Cost: ¥10,400,000、Indirect Cost: ¥3,120,000)
Fiscal Year 2018: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
Fiscal Year 2017: ¥10,660,000 (Direct Cost: ¥8,200,000、Indirect Cost: ¥2,460,000)
Fiscal Year 2016: ¥10,660,000 (Direct Cost: ¥8,200,000、Indirect Cost: ¥2,460,000)
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| Outline of Final Research Achievements |
The purpose of the singularity-structure project is project is to extend crystal science by studying crystal singularity-structures. The purpose of this project is to obtain knowledge of optical and electrical properties of 0D-singularity-structures using positron annihilation, and to contribute to the construction of extended crystallography. Through this project, we have accumulated the know-how to evaluate vacancy-type defects even when using a positron beam with a diameter larger than the size of the singularity-structure. We also succeeded in focusing the positron beam diameter to several hundred micrometers using a high intensity positron beam. In addition, we have demonstrated the effectiveness of photothermal deflection spectroscopy, which enables us to characterize the optical and electrical properties of 0D-singularity-structures by using positron annihilation, photothermal deflection spectroscopy, and emission spectrum analysis.
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