@article{3cd6b78f86a44e2ba21be55a98631cc9,
title = "Quasi One-Dimensional Band Structure of Photoinduced Semimetal Phase of Ta2Ni1−xCoxSe5 (x = 0.0 and 0.1)",
abstract = "The photoinduced semimetal phase of Ta2Ni1−xCoxSe5 (x = 0.0 and 0.1) is studied by time-resolved angle-resolved photoemission spectroscopy. The observed band dispersions roughly agree with the generalized gradient approximation (GGA) calculation which fails to reproduce the band gap at the ambient condition. This suggests that the electron–hole interaction, which is not exactly included in GGA, is screened out by the photoexcited carriers. There is no indication of pseudogap. The conduction and valence bands provide quasi one-dimensional Fermi surfaces with similar momentum positions suggesting a quasi one-dimensional line-node semimetal.",
author = "Takumi Mitsuoka and Yu Takahashi and Takeshi Suzuki and Mario Okawa and Hidenori Takagi and Naoyuki Katayama and Hiroshi Sawa and Minoru Nohara and Mari Watanabe and Jiadi Xu and Qianhui Ren and Masami Fujisawa and Teruto Kanai and Jiro Itatani and Kozo Okazaki and Shik Shin and Takashi Mizokawa",
note = "Funding Information: Acknowledgements This work was partially supported by Grants-in-Aid from the Japan Society of the Promotion of Science (JSPS) (Grant No. JP19H00659) and Grant-in-Aid for Scientific Research on Innovative Areas “Quantum Liquid Crystals” (Grant No. JP19H05826). T.S. was supported by research grants from The Murata Science Foundation and The Hattori Hokokai Foundation. This work was carried out under the Visiting Researcher{\textquoteright}s Program of the Institute for Solid State Physics, the University of Tokyo (Proposal No. B219). Funding Information: This work was partially supported by Grants-in-Aid from the Japan Society of the Promotion of Science (JSPS) (Grant No. JP19H00659) and Grant-in-Aid for Scientific Research on Innovative Areas “Quantum Liquid Crystals” (Grant No. JP19H05826). T.S. was supported by research grants from The Murata Science Foundation and The Hattori Hokokai Foundation. This work was carried out under the Visiting Researcher{\textquoteright}s Program of the Institute for Solid State Physics, the University of Tokyo (Proposal No. B219). Publisher Copyright: {\textcopyright}2023 The Physical Society of Japan.",
year = "2023",
month = feb,
day = "15",
doi = "10.7566/JPSJ.92.023703",
language = "English",
volume = "92",
journal = "Journal of the Physical Society of Japan",
issn = "0031-9015",
publisher = "Physical Society of Japan",
number = "2",
}