Sota Takagi

Research Paper

• J. Li, L. Xu, S. Takagi, Q. Wang, J. Yang, M. Zhou, S. Chen, K. Miyanishi, K. Sueda, T. Yabuuchi, K. Ichiyanagi, H. Nakamura, A. Amouretti, N. Ozaki, Q. Wu, J. Hu, Kinetics of the bct-bcc phase transformation in tin revealed by ultrafast X-ray diffraction. Applied Physics Letters 126, 264102 (2025).

• S. Takagi, S. Tracy, In situ XRD observation of the amorphization of feldspars under plate-impact shock compression. AIP Conference Proceedings, 3066, 520001(2024).

• J. Li, Q. Wang, L. Xu, L. Liu, H. Zhang, S. Takagi, K. Ichiyanagi, R. Fukaya, S. Nozawa, J. Hu, In situ observation of the phase transformation kinetics of bismuth during shock release, Chinese Physics B 33, 046401 (2024).

• R. Kuwamura, S. Takagi, A. Kyono, Pressure-induced phase transition of oxygen defective perovskite srebrodolskite Ca2Fe2O5, Journal of Mineralogical and Petrological Sciences 118, (2023).

• A. Kyono, R. Ikeda, S. Takagi, W. Nishiyasu, Structural evolution of gypsum (CaSO4·2H2O) during thermal dehydration, Journal of Mineralogical and Petrological Sciences 117, 015 (2022).

• S. Takagi, K. Ichiyanagi, A. Kyono, N. Kawai, S. Nozawa, N. Ozaki, Y. Seto, T. Okuchi, S. Nitta, S. Okada, K. Miyanishi, K. Sueda, T. Togashi, T. Yabuuchi, Phase transition and melting in zircon by nanosecond shock loading, Physics and Chemistry of Minerals 49, 8 (2022).

• S. Takagi, K. Inukai, N. Kawai, S. Nozawa, A. Kyono, R. Fukaya, S. Adachi, K. Ichiyanagi, Visualization of transformation toughening of zirconia ceramics during dynamic fracture, Applied Physics Letters 118, 231901 (2021).

• V. Stagno, L. Bindi, S. Takagi, A. Kyono, Can quasicrystals survive in planetary collisions?, Progress in Earth and Planetary Science 8(1) (2021).

• S. Takagi, A. Kyono, S. Nozawa, N. Kawai, K. Inukai, R. Fukaya, N. Funamori, S. Adachi, K. Ichiyanagi, In situ observation of the phase transition behavior of shocked baddeleyite, Geophysical Research Letters 47(17), e2020GL089592 (2020).

• S. Takagi, K. Ichiyanagi, A. Kyono, S. Nozawa, N. Kawai, R. Fukaya, N. Funamori, S. Adachi, Development of shock-dynamics study with synchrotron-based time-resolved X-ray diffraction using an Nd:glass laser system, Journal of Synchrotron Radiation 27(2) 371 (2020).

• Y. Sano, A. Kyono, Y. Yoneda, N. Isaka, S. Takagi, G. Yamamoto, Structure changes of nanocrystalline mackinawite under hydrothermal conditions, Journal of Mineralogical and Petrological Sciences 115(3), 261 (2020).

• K. Ichiyanagi, S. Takagi, N. Kawai, R. Fukaya, S. Nozawa, K. G. Nakamura, K.-D. Liss, M. Kimura, S. Adachi, Microstructural deformation process of shock-compressed polycrystalline aluminum, Scientific Reports 9(1) (2019).

• S. Takagi, A. Kyono, S. Mitani, N. Sugano, Y. Nakamoto, N. Hirao, X-ray diffraction study of the icosahedral AlCuFe quasicrystal at megabar pressures, Materials Letters 161 (2015).

Concurrent post

• Carnegie Institution for Science, Collaborative Researcher (host: Sally June Tracy) (2024.4 - present)

• Carnegie Institution for Science, Visiting Researcher (host: Sally June Tracy) (2021.11 - 2022.12)

• National Institute for Materials Science (NIMS), Visiting Researcher (host: Masashi Miyakawa) (2021.9 - 2022.3)

Experimental Project at Synchrotron/XFEL/Laser Facility

• SACLA, (2024B8012) "Memory effect in shock-induced amorphization of feldspar minerals" (2025.1)

• KEK PF & J-PARC MLF, multi-probe (2024MP-S002) "Crystal structure dynamics of negative thermal expansion in (Zr,Hf)(W,Mo)2O8 solid solution" (2024.9 - 2025.8)

• LCLS, (L-10186) "Metastable shock-synthesis of the seifertite phase of SiO2" (2024.1)

• SACLA, (2022A8064) "Direct imaging of a shock-induced dynamic fracture of ceramics using phase contrast imaging and in situ X-ray diffraction" (2022.6)

• LCLS, (LX83) "The Phase Transition Behavior of Shock-loaded Baddeleyite" (2022.2)

• KEK PF, (2020G584) "Direct observation of the shock metamorphism of zircon" (2020.10 - 2022.9)

• KEK PF, (2017T002) "The study of the mechanism of the AlCuFe quasicrystal formation via time resolved XRD and time-resolved DXAFS" (2017.4 - 2020.3)

Press Release, article

• Response of a mineral to short time shock loading. Press release (2022.5.9)

• Time-Resolved X-ray Diffraction with Laser-Induced Shock on Minerals. Journal of the Crystallographic Society of Japan. 63, 4, 253 (2021.12.21)

• Transformation Toughening of Ceramics Made Crystal Clear. Press release (2021.6.8)

• Exploring the scale of meteorite impact from minerals -Laboratory-based shock experiments on minerals- Press release (2020.9.7)

Science meeting presentation