(Under construction)

International conferences (speaker)

  1. Katsuhiro Tanaka, Takuya Nomoto, and Ryotaro Arita,
    ‘‘First-principles study of tunnel magnetoresistance effect using an altermagnet Cr-doped RuO2’’
    Psi-k Conference 2025, C8.15, SwissTech Convention Center, EPFL, Lausanne (Switzerland), August 2025 (Poster).

  2. Katsuhiro Tanaka, Takuya Nomoto, and Ryotaro Arita,
    ‘‘Tunnel magnetoresistance effect with an altermagnet Cr-doped RuO2’’
    International Conference on Strongly Correlated Electron Systems 2025 (SCES 2025), Montreal Bonaventure Hotel (Canada), July 2025 (Oral).

  3. Katsuhiro Tanaka, Takuya Nomoto, and Ryotaro Arita,
    ‘‘First-principles calculation of tunnel magnetoresistance effect using Cr-doped RuO2’’
    CEMS Symposium on Emergent Quantum Materials 2024, P073, Bellesalle Akihabara (Japan), February 2024 (Poster).

  4. Katsuhiro Tanaka, Takuya Nomoto, and Ryotaro Arita,
    ‘‘First-principles study on tunnel magnetoresistance effect with antiferromagnets’’
    International Symposium on Quantum Electronics 2024, Ito International Research Center (Japan), February 2024 (Oral).

  5. Katsuhiro Tanaka, Takuya Nomoto, and Ryotaro Arita,
    ‘‘Role of local density of states for evaluating tunnel magnetoresistance effect’’
    Trends in the Theory of Quantum Materials 2023 (TTQM2023), P19, UTokyo Kashiwanoha Campus Station Satellite + Kohu Kaikan (Japan), October 2023 (Poster).

  6. Katsuhiro Tanaka, Xianzhe Chen, Tomoya Higo, Takuya Nomoto, Hanshen Tsai, Hiroshi Idzuchi, Masanobu Shiga, Shoya Sakamoto, Ryoya Ando, Hidetoshi Kosaki, Takumi Matsuo, Daisuke Nishio-Hamane, Ryotaro Arita, Shinji Miwa, and Satoru Nakatsuji,
    ‘‘Magnetoresistance in a tunnel junction with an antiferromagnet Mn3Sn’’
    International Conference on Quantum Liquid Crystals (QLC2023), PS1-51, Hokkaido University (Japan), August 2023 (Poster).

  7. Katsuhiro Tanaka, Xianzhe Chen, Tomoya Higo, Takuya Nomoto, Ryotaro Arita, Shinji Miwa, Satoru Nakatsuji,
    ‘‘Tunneling Magnetoresistance Effect with an Antiferromagnet Mn3Sn’’
    11th International Symposium on Metallic Multilayers (MML 2023), Korea University (Korea), July 2023 (Poster).

  8. Katsuhiro Tanaka and Chisa Hotta,
    ‘‘Spin nematic phases in two-dimensional spin-1 dimer system’’
    Trends in Theory of Correlated Materials 2019, Kyoto University (Japan), October 2019 (Poster).

  9. Katsuhiro Tanaka and Chisa Hotta,
    ‘‘Realization of spin nematic phases in antiferromagnetic dimer dumbbell models on two-dimensional lattices’’
    Topological Phases and Functionality of Correlated Electron Systems 2019, February 2019 (Poster).

  10. Katsuhiro Tanaka, Tsutomu Momoi, and Chisa Hotta,
    ‘‘Intrinsic electronic ferroelectricity derived from the SU(4) symmetric two-orbital Hubbard model on a triangle’’
    Gordon Research Conference on Multiferroic and Magnetoelectric Materials, Bates College (USA)，August 2018 (Poster).

  11. Katsuhiro Tanaka, Tsutomu Momoi, and Chisa Hotta,
    ‘‘Intrinsic electronic ferroelectricity derived from the SU(4) symmetric two-orbital Hubbard model on a triangle’’
    Gordon Research Seminar on Multiferroic and Magnetoelectric Materials (GRS), Bates College (USA)，August 2018 (Oral (+ poster)).

International conferences (collaborators’ presentations)

  1. Tomoya Higo, Xianzhe Chen, Katsuhiro Tanaka, Takuya Nomoto, Hanshen Tsai, Hiroshi Idzuchi, Masanobu Shiga, Shoya Sakamoto, Hidetoshi Kosaki, Takumi Matsuo, Daisuke Nishio-Hamane, Ryotaro Arita, Shinji Miwa, and Satoru Nakatsuji,
    ‘‘Observation of octupole-driven magnetoresistance in a chiral antiferromagnetic tunnel junction’’
    IEEE International Magnetics Conference INTERMAG 2024, Brazil, 2024 (Invited talk)

  2. Tomoya Higo, Kouta Kondou, Takuya Nomoto, Xianzhe Chen, Katsuhiro Tanaka, Masanobu Shiga, Shoya Sakamoto, Hanshen Tsai, Hiroshi Idzuchi, Hidetoshi Kosaki, Takumi Matsuo, Daisuke Nishio-Hamane, Ryotaro Arita, Yoshichika Otani, Shinji Miwa, and Satoru Nakatsuji,
    ‘‘Electrical manipulation and detection of non-collinear spin textures in the chiral antiferromagnet Mn3Sn’’
    APS March Meeting 2024, USA, 2024 (Invited talk)

  3. Yuta Toga, Katsuhiro Tanaka, Satoru Nakatsuji, and Takashi Koretsune,
    ‘‘Substitution-Driven Enhancement of the Néel Temperature in the Noncollinear Magnet Mn3Sn: A Theoretical Study’’
    International Symposium on Quantum Electronics 2024, Ito International Research Center, Japan, 2024 (Poster)

  4. Rihito Kondo, Masahiko Yunokizaki, Hiroshi Idzuchi, Koji Inukai, Katsuhiro Tanaka, Shoya Sakamoto, Tomoya Higo, Shinji Miwa, and Satoru Nakatsuji,
    ‘‘Octupole polarization switching in Mn3Sn probed by magnetoresistance through magnetic tunnel junction with different sizes’’
    International Symposium on Quantum Electronics 2024, Ito International Research Center, Japan, 2024 (Poster)

  5. Masahiko Yunokizaki, Rihito Kondo, Hiroshi Idzuchi, Koji Inukai, Shoya Sakamoto, Katsuhiro Tanaka, Tomoya Higo, Shinji Miwa, and Satoru Nakatsuji,
    ‘‘Fabrication of tunnel junction with the antiferromagnetic Weyl semimetal Mn3Sn dot down to sub-micron scale’’
    International Symposium on Quantum Electronics 2024, Ito International Research Center, Japan, 2024 (Poster)

  6. Tomoya Higo, Kouta Kondou, Takuya Nomoto, Xianzhe Chen, Katsuhiro Tanaka, Masanobu Shiga, Shoya Sakamoto, Hanshen Tsai, Hiroshi Idzuchi, Hidetoshi Kosaki, Takumi Matsuo, Daisuke Nishio-Hamane, Ryotaro Arita, Yoshichika Otani, Shinji Miwa, and Satoru Nakatsuji,
    ‘‘Electrical manipulation and detection of topological antiferromagnetic state in Mn3Sn-based epitaxial heterostructures’’
    International Symposium on Quantum Electronics 2024, Ito International Research Center, Japan, 2024 (Oral)

  7. Xianzhe Chen, Tomoya Higo, Katsuhiro Tanaka, Takuya Nomoto, Hanshen Tsai, Hiroshi Idzuchi, Masanobu Shiga, Shoya Sakamoto, Ryoya Ando, Hidetoshi Kosaki, Takumi Matsuo, Daisuke Nishio-Hamane, Ryotaro Arita, Shinji Miwa, and Satoru Nakatsuji, ‘‘Anisotropic spin polarized current and magnetoresistance in an antiferromagnetic tunnel junction’’
    International Symposium on Quantum Electronics 2024, Ito International Research Center, Japan, 2024 (Oral)

  8. Masahiko Yunokizaki, Rihito Kondo, Hiroshi Idzuchi, Koji Inukai, Shoya Sakamoto, Katsuhiro Tanaka, Tomoya Higo, Shinji Miwa, and Satoru Nakatsuji,
    ‘‘Fabrication of Mn3Sn/MgO/Fe tunnel Junction down to sub-micron scale’’
    36th International Microprocesses and Nanotechnology Conference (MNC 2023), Sapporo, Japan, 2023 (Poster)

  9. Shinji Miwa, Xianzhe Chen, Tomoya Higo, Katsuhiro Tanaka, Ryotaro Arita, and Satoru Nakatsuji,
    ‘‘Spin-torque switching and tunnel magnetoresistance using an antiferromagnetic Weyl semimetal’’
    68th Annual Conference on Magnetism and Magnetic Materials (MMM2023), Texas, USA, 2023 (Invited talk)

Domestic conferences (Presentations at Japanese conferences)

Please see here (written in Japanese).