Emi Minamitani, Takuma Shiga, Makoto Kashiwagi, and Ippei Obayashi. Topological descriptor of thermal conductivity in amorphous Si. J. Chem. Phys. 156, 244502 (2022) https://doi.org/10.1063/5.0093441
Yohei Onodera, Shinji Kohara, Philip S. Salmon, Akihiko Hirata, Norimasa Nishiyama, Suguru Kitani, Anita Zeidler, Motoki Shiga, Atsunobu Masuno, Hiroyuki Inoue, Shuta Tahara, Annalisa Polidori, Henry E. Fischer, Tatsuya Mori, Seiji Kojima, Hitoshi Kawaji, Alexander I. Kolesnikov, Matthew B. Stone, Matthew G. Tucker, Marshall T. McDonnell, Alex C. Hannon, Yasuaki Hiraoka, Ippei Obayashi, Takenobu Nakamura, Jaakko Akola, Yasuhiro Fujii, Koji Ohara, Takashi Taniguchi and Osami Sakata. Structure and properties of densified silica glass: characterizing the order within disorder. NPG Asia Materials volume 12, 85 (2020). https://doi.org/10.1038/s41427-020-00262-z
Akihiko Hirata, Tomohide Wada, Ippei Obayashi and Yasuaki Hiraoka. Structural changes during glass formation extracted by computational homology with machine learning. Communications Materials 1, 98 (2020). https://doi.org/10.1038/s43246-020-00100-3
Chihiro Koyama, Shuta Tahara, Shinji Kohara, Yohei Onodera, Didrik R. Småbråten, Sverre M. Selbach, Jaakko Akola, Takehiko Ishikawa, Atsunobu Masuno, Akitoshi Mizuno, Junpei. T. Okada, Yuki Watanabe, Yui Nakata, Koji Ohara, Haruka Tamaru, Hirohisa Oda, Ippei Obayashi, Yasuyuki Hiraoka, and Osami Sakata. Very sharp diffraction peak in non-glass forming liquid with the formation of distorted tetraclusters. NPG Asia Materials 12, 43, (2020). https://doi.org/10.1038/s41427-020-0220-0
Emi Minamitani, Takuma Shiga, Makoto Kashiwagi, and Ippei Obayashi. Relationship between local coordinates and thermal conductivity in amorphous carbon. Journal of Vacuum Science & Technology A 40, 033408 (2022). https://doi.org/10.1116/6.0001744
Yohei Onodera, Yasuyuki Takimoto, Hiroyuki Hijiya, Taketoshi Taniguchi, Shingo Urata, Seiji Inaba, Sanae Fujita, Ippei Obayashi, Yasuaki Hiraoka and Shinji Kohara. Origin of the mixed alkali effect in silicate glass. NPG Asia Materials 11 75 (2019). https://doi.org/10.1038/s41427-019-0180-4
Yohei ONODERA, Shinji KOHARA, Shuta TAHARA, Atsunobu MASUNO, Hiroyuki INOUE, Motoki SHIGA, Akihiko HIRATA, Koichi TSUCHIYA, Yasuaki HIRAOKA, Ippei OBAYASHI, Koji OHARA, Akitoshi MIZUNO, and Osami SAKATA. Understanding diffraction patterns of glassy, liquid and amorphous materials via persistent homology analyses. Journal of the Ceramic Society of Japan 2019 127(12) 853–863, (2019). (article (open access))
M. Murakami, S. Kohara, N. Kitamura, J. Akola, H. Inoue, A. Hirata, Y. Hiraoka, Y. Onodera, I. Obayashi, J. Kalikka, N. Hirao, T. Musso, A. S. Foster, Y. Idemoto, O. Sakata, and Y. Ohishi. Ultrahigh-pressure form of SiO2 glass with dense pyrite-type crystalline homology. Phys. Rev. B 99, 045153 (2019). (article)
M. Kimura, I. Obayashi, Y. Takeichi, R. Murao, and Y. Hiraoka. Non-empirical identification of trigger sites in heterogeneous processes using persistent homology. Scientific Reports 8, 3553, (2018). (article (open access))
Takashi Ichinomiya, Ippei Obayashi, and Yasuaki Hiraoka. Persistent homology analysis of craze formation. Phys. Rev. E 95, 012504, (2017) . (article)
Life science
Yohei Shimizu, Takanori Kurokawa, Hirokazu Arai, Hitoshi Washizu. Higher-order structure of polymer melt described by persistent homology: Applications to the atomic data of polymer copmuted by MD simulations
Fumihiko Uesugi, Masashi Ishii. Classification for transmission electron microscope images from different amorphous states using persistent homology: TEM image analysis with ML
Sungyeon Hong, Donghun Kim. Medium-range order in amorphous ices revealed by persistent homology
Developmental biology
QCD (quantum chromodynamics)