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This program covers mineralogy, structure, and dynamics of the Earth's deep interior, particularly focusing on the mineral physics aspects of the lower mantle and the core, based on both experimental and computational methodologies. Ultrahigh-pressure experiments, sound velocity measurements, in situ observations using synchrotron and neutron beams, first-principles calculations are the core technologies of the present program, and we will develop cutting-edge techniques relevant to these technologies, as well as for the promotion of the sciences on the mineralogy of the lower mantle and the core. Synthesis of new materials at high pressure and their characterization are also covered by the present program, based both on advanced experimental techniques and computational predictions.
Focused Research Topics
Innovative Technical Developments
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High-pressure & temperature generation with HIME-DIA, corresponding to Earth's deep conditions
- Generation of conditions in the whole mantle and inner core
- Development of newly high-pressure apparatus for nuetron experiments at J-PARC
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Sound velocity measurement at world's highest pressure & temperature conditions
- Measurements at lower mantle conditions
- Measurements of magma under high pressure
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Syntesis of newly materials by world's largest class multi-anvil apparatus
- Synthesis of large volume materials and HIME-DIA with 1-cm size
- Precise experiments under 100 GPa conditions by using sintered diamond anvil cell
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Highly advanced numerical calculations of first-principle and dynamics simulations
- First-principle calculations for multi-compenent materials under extreme high pressure and temperature conditions
- 3-D mantle dynamics simulations with realistic physical properties of minerals
