Sota Takagi
Assistant Professor / Tokyo University of Science
E-mail: stakagi(at)rs.tus.ac.jp
Research Paper
S. Takagi, S. Tracy, In situ XRD observation of the amorphization of feldspars under plate-impact shock compression. AIP Conference Proceedings (in press).
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).
Employment
Tokyo University of Science, Faculty of Advanced Engineering, Department of Materials Science and Technology, Assistant Professor (2024/4 - present)
Carnegie Institution for Science, Postdoctral Fellow (2022/12 - 2024/3)
Japan Society for the Promotion of Science (JSPS), Research Fellow PD (host: KEK, Shunsuke Nozawa) (2021/4 - 2022/12)
High Energy Accelerator Research Organization (KEK), Institute of Materials Structure Science, Researcher (2020/4 - 2021/3)
Japan Society for the Promotion of Science (JSPS), Research Fellow DC (host: University of Tsukuba, Atsushi Kyono) (2018/4 - 2020/3)
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)
Education
Ph.D. University of Tsukuba, 2020
M.D. University of Tsukuba, 2017
B.D. University of Tsukuba, 2015
Experimental Project at Synchrotron/XFEL/Laser Facility
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)
Research Fund
JSPS KAKENHI, Grant-in-Aid for Early-Career Scientists, (22K14128) "Effect of shockwave pulse duration on shock metamorphism of minerals" (2022/4 - 2024/3)
JSPS KAKENHI, Grant-in-Aid for JSPS Research Fellow, (21J01027) "Amorphization mechanism of plagioclase in shock metamorphism" (2021/4 - 2024/3)
JSPS KAKENHI, Grant-in-Aid for JSPS Research Fellow, (18J11126) "Time-resolved XRD study on the formation mechanism of AlCuFe quasicrystal minerals" (2018/4 - 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)