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Assoc Prof Dr. Takayuki Isii | Crystal chemistry | Best Researcher Award

Orcid Profile

Educational Details:

Dr. Takayuki Isii completed his academic training at Gakushuin University, where he earned his Ph.D. in Science from the Graduate School of Natural Science in 2015. Prior to his doctoral studies, he received his Master of Science in 2012, also from the Graduate School of Natural Science at Gakushuin University. His academic foundation began with a Bachelor of Science degree in Chemistry from the Faculty of Science, Gakushuin University, which he obtained in 2010. His educational journey provided a robust background in the natural sciences, laying the groundwork for his subsequent research in high-pressure geophysics and mineral physics.

Professional Experience

Dr. Isii is currently an Associate Professor at Okayama University (April 2023 – present), where he focuses on high-pressure planetary materials. Prior to this, he was a tenure-tracked staff scientist at the Center for High Pressure Science & Technology Advanced Research (April 2021 – March 2023). His earlier roles include serving as the Principal Investigator of a German Research Foundation project (April 2019 – March 2021), Humboldt Research Fellow (April 2017 – March 2019), and Overseas Research Fellow supported by the Japan Society for the Promotion of Science (JSPS) (April 2016 – March 2017). Dr. Isii also held postdoctoral fellowships under JSPS, focusing on the high-pressure properties of minerals relevant to Earth’s mantle.

Research Interest

Dr. Isii’s research focuses on high-pressure mineral physics, geophysics, and materials science. His primary interest lies in investigating phase transitions, chemical heterogeneities, and physical properties of Earth’s deep interior materials under extreme conditions. He also explores hydrous mineral stability and their implications for planetary processes. Dr. Isii actively contributes to advancing understanding in high-pressure science, geoscience, and planetary materials through experimental research and collaboration with international scientific communities.

Top Notable Publications

Takayuki Ishii (2024). “Synthesis and Crystal Structure of Ilmenite-Type Silicate with Pyrope Composition.” Solids, 5(3). DOI: 10.3390/solids5030026.

Takayuki Ishii (2024). “Hydrogen partitioning between stishovite and hydrous phase δ: Implications for water cycle and distribution in the lower mantle.” Progress in Earth and Planetary Science. DOI: 10.1186/s40645-024-00615-0.

Takayuki Ishii (2023). “Buoyancy of slabs and plumes enhanced by curved post-garnet phase boundary.” Nature Geoscience. DOI: 10.1038/s41561-023-01244-w.

Takayuki Ishii (2023). “Iron and aluminum substitution mechanism in the perovskite phase in the system MgSiO3-FeAlO3-MgO.” American Mineralogist, 108(4). DOI: 10.2138/am-2022-8457.

Takayuki Ishii (2023). “Equation of State and Spin Crossover of (Al, Fe)‐Phase H.” Journal of Geophysical Research: Solid Earth. DOI: 10.1029/2022JB026291.

Takayuki Ishii (2023). “Ferric Iron Substitution Mechanism in Bridgmanite under SiO2-Saturated Conditions at 27 GPa.” ACS Earth and Space Chemistry, 7(2). DOI: 10.1021/acsearthspacechem.2c00326.

Takayuki Ishii (2023). “Stability of Fe5O6 and its relation to other Fe-Mg-oxides at high pressures and temperatures.” American Mineralogist, 108(1). DOI: 10.2138/am-2022-8370.

Takayuki Ishii (2023). “Synthesis and structural analysis of CaFe2O4-type single crystals in the NaAlSiO4-MgAl2O4-Fe3O4 system.” American Mineralogist, 108(1). DOI: 10.2138/am-2022-8748.

Takayuki Ishii (2023). “The influence of Al2O3 on the structural properties of MgSiO3 akimotoite.” American Mineralogist, 108(1). DOI: 10.2138/am-2022-8257.

Takayuki Ishii (2022). “Superhydrous aluminous silica phases as major water hosts in high-temperature lower mantle.” Proceedings of the National Academy of Sciences, 119(46). DOI: 10.1073/pnas.2211243119.

Conclusion

Dr. Takayuki Isii’s research portfolio reflects a dedication to scientific innovation with a profound community impact. His interdisciplinary and international research efforts, alongside his focus on critical global challenges, make him a strong contender for the Research for Community Impact Award. His work not only advances scientific knowledge but also contributes to solving real-world problems that affect global communities.

 

Takayuki Isii | Crystal Chemistry | Best Researcher Award

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