2023 Fiscal Year Final Research Report
Next generation diffraction Structure Study using advaice quantum beam facilities in the world
| Project/Area Number |
19KK0132
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| Research Category |
Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 30:Applied physics and engineering and related fields
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| Research Institution | University of Tsukuba |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
PAL RUMPA 筑波大学, 数理物質系, 助教 (30842265)
笠井 秀隆 筑波大学, 数理物質系, 助教 (80634807)
河口 彰吾 公益財団法人高輝度光科学研究センター, 回折・散乱推進室, 主幹研究員 (10749972)
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| Project Period (FY) |
2019-10-07 – 2024-03-31
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| Keywords | 量子ビーム / 放射光 / X線自由電子レーザー / 構造解析 |
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| Outline of Final Research Achievements |
In this research, we did materials science using the large synchrotron radiation facility SPring-8 and the X-ray free electron laser facility SACLA through international collaboration with Aarhus University, Denmark. Although the coronavirus pandemic hit half a year after the start of the project, the project continued while refraining from traveling and inviting foreign researchers to Japan for two years, and ultimately succeeded in producing more than five original papers. After the coronavirus pandemic, we were visiting Japan and traveling abroad, and in 2022 and 2023. We traveled to Aarhus University to hold workshops and have active exchanges between students and young researchers. From 2022, many staff and students have participated in international joint research at SPring-8 and SACLA.
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| Free Research Field |
放射光物質科学
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| Academic Significance and Societal Importance of the Research Achievements |
大きな成果は、熱電変換材料の新しい高性能化の方法の発見と、XFELを用いた２種類の新しい物質科学研究のための手法開発がある。熱電変換材料については、精密なデータ測定と３次元デルタ二体相関関数法の適用、および放射光非弾性散乱測定により、単純な結晶構造で知られていたInTe熱電変換材料の中に不規則な構造が存在することを明確に発見した。これは、今後のエネルギー問題の解決に向けた大きな一歩である。Ｘ線自由電子レーザーを物質科学の研究に利用するために結晶構造解析が可能な手法開発と、非結晶から原子の配列とフェムト秒の時間分解能で決定可能な方法の開発を行った。これは原子構造が関連する全分野への貢献が大きい。
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