| Budget Amount *help |
¥44,720,000 (Direct Cost: ¥34,400,000、Indirect Cost: ¥10,320,000)
Fiscal Year 2024: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2023: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
Fiscal Year 2022: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
Fiscal Year 2021: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
Fiscal Year 2020: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
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| Outline of Final Research Achievements |
We developed experimental platforms and procedures for investigating hydride materials under extreme pressures based dynamic high pressure techniques. In particular, in order to visualize structural changes and reactions in an extremely short time under the extreme conditions, we established the ultrafast X-ray diffraction observations with femtosecond time resolution using an X-ray free electron laser, and carried out experiments. Shock compression data was collected for hydride samples starting from liquid and solid states, and physical properties such as the equation of state were clarified. We obtained experimental results suggesting metallization through the generation of metallic hydrogen in hydrogen sulfide and ammonia borane, as well as the immiscibility-miscibility transition of metallic hydrogen in such systems. We also obtained first-principles molecular dynamics calculation results consisent with those experimental results.
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