Presentations (International)

2025

• Orbital-Disordered Insulating State in a Flat Band Metal NbSeI,
  Yoshihiko Okamoto,
  2nd international conference on Quantum Magnetism and Topology, Pohang, Korea, June 18th, 2025 (invited)
• Compass-Model Physics on the Hyperhoneycomb Lattice in the Extreme Spin-Orbit Regime,
  Ryutaro Okuma,
  International Conference on Highly Frustrated Magnetism 2025, University of Toronto, Canada, May 27th, 2025 (invited)
• Orbital-Disordered Insulating State in a Flat Band Metal NbSeI,
  Yoshihiko Okamoto,
  Quantum Synthesis Workshop, Santa Barbara, United States, May 21st, 2025 (invited)
• Al₂Ge₂ Tetramer formation in KAlGe,
  Toshiya Ikenobe, Jun-ichi Yamaura, Takahiro Yamada, Tamio Oguchi, Dyon van Dinter, Ryutaro Okuma, Yoshihiko Okamoto, Yoshinori Okada, and Zenji Hiroi
  Quantum Synthesis Workshop, Santa Barbara, United States, May 19th, 2025 (poster)
• Synthesis and Superconductivity of Hexagonal Zr₆MBi₂,
  Kosuke Yuchi,
  JKT-23, Busan, South-Korea, March 14, 2025 (poster)
• Synthesis and Transport Properties of Ta2Ni3Te5 Single Crystals,
  Hiroto Isomura,
  JKT-23, Busan, South-Korea, March 14, 2025 (poster)
• Self-support Synthesis of inorganic Single Ion Magnets,
  Keita Nagasawa,
  JKT-23, Busan, South-Korea, March 14, 2025 (poster)
• Electronic Self-Organization in the β-Pyrochlore Oxide CsW₂O₆,
  Yoshihiko Okamoto,
  JKT-23, Busan, South-Korea, March 14, 2025 (invited)

2024

• Compass Model Physics on the Hyperhoneycomb β-Na₂PrO₃
  Ryotaro Okuma,
  Correlated Quantum Materials + beyond: Symposium, Kashiwa, Japan, November 26th, 2024 (invited).
• Quadrupolar Order in a Spin-Orbit Coupled Insulator Ba₂MgReO₆ Probed by Ultrasonic Measurements
  Toshihiko Muroi
  Spin-Orbit Entangled Quantum Magnetism, Vienna, Austria, September 24th, 2024 (poster).
• Itinerant Frustration in van der Waals Antiferromagnets
  Ryutaro Okuma
  New Frontiers in Advanced Magnetism 2024, Sapporo, Japan, August 8th, 2024 (invited).
• Hall Effect from Fluctuating Spins in the Kagome Antiferromagnet DyAgGe with Magnetization Plateaus
  Keita Nagasawa
  New Frontiers in Advanced Magnetism 2024, Sapporo, Japan, August 7th, 2024 (poster).
• Quadrupolar Order in a Spin-Orbit Coupled Insulator Ba2MgReO6 Probed by Ultrasonic Measurements
  Toshihiko Muroi
  New Frontiers in Advanced Magnetism 2024, Sapporo, Japan, August 7th, 2024 (poster). (Poster Award)
• Superconductivity in Ternary Telluride Sc₆MTe₂ with 3d, 4d, and 5d Transition Metals,
  Yoshihiko Okamoto,
  2024SNU-ISSP Workshop, Seoul, South Korea, May 24, 2024 (oral).
• Synthesis and superconductivity of hexagonal Zr₆RuBi₂ without spatial inversion symmetry,
  Kosuke Yuchi, Haruka Matsumoto, Kodai Moriyama, Ryutaro Okuma, Zenji Hiroi, and Yoshihiko Okamoto,
  2024SNU-ISSP Workshop, Seoul, South Korea, May 24, 2024 (poster).
• Effect of "trimer frustration" on phase transitions in layered LiVO₂,
  Keita Kojima,
  2024SNU-ISSP Workshop, Seoul, South Korea, May 24, 2024 (poster).
• Synthesis and thermoelectric properties of van der Waals crystal Ta₂Ni₃Te₅,
  Hiroto Isomura, Ryutaro Okuma, Junichi Yamaura, and Yoshihiko Okamoto,
  2024SNU-ISSP Workshop, Seoul, South Korea, May 24, 2024 (poster).
• Minimum topological magnetism in the Hund's excitonic insulator GdGaI,
  Ryutaro Okuma,
  2024SNU-ISSP Workshop, Seoul, South Korea, May 24, 2024 (poster).
• Large Magnetic-Field-Induced Strain in Cr-Based Magnets,
  Yoshihiko Okamoto,
  JKT-22, Kagoshima, Japan, March 15-17, 2024, (invited).
• Noncollinear magnetism from frustrated bond-dependent anisotropic exchange on the f-electron hyperhoneycomb lattice in β-Na₂PrO₃,
  R. Okuma, K. MacFarquharson, R. D. Johnson, D. Voneshen, P. Manuel, and R. Coldea
  American Physical Society March Meeting 2024, Minneapolis, United States, March 4-8, 2024 (oral).
• Superconductivity induced by doping holes in the nodal-line semimetal NaAlGe
  T. Ikenobe, T. Yamada, D. Hirai, H. Yamane, and Z. Hiroi,
  American Physical Society March Meeting 2024, Minneapolis, March 4th (oral).
• Tetrahedral magnetic order by excitonic instability in a van der Waals coupled semiconductor GdGaI,
  R. Okuma, K. Yamagami, Y. Fujisawa, Y. Ihara, and Y. Okada,
  International Conference on Highly Frustrated Magnetism, Chennai, India, January 8-13, 2024 (poster).

2023

• Structural Phase Transition and H-linear Magnetoresistance in Cage-structured Superconductor A₃Co₄Sn₁₃ (A = Ca, La),
  Kodai Moriyama, Chishiro Michioka, Hiroaki Ueda, Wing Chi Yu, Swee Kuan Goh, Kazuyoshi Yoshimura,
  MRM2023/IUMRS-ICA2023, Kyoto, Japan, December 11-16, 2023 (poster).
• Superconductivity in Ternary Telluride Sc₆MTe₂ with 3d, 4d, and 5d Transition Metals,
  Yoshihiko Okamoto,
  MRM2023/IUMRS-ICA2023, Kyoto, Japan, December 11-16, 2023 (invited).
• Superconductivity in Ternary Telluride Sc₆MTe₂ with 3d, 4d, and 5d Transition Metals
  Yoshihiko Okamoto
  The 36th International Symposium on Superconductivity, Takina, Wellington, New Zealand, November 28-30, 2023 (invited).
• Superconductivity in Ternary Telluride Sc₆MTe₂ with 3d, 4d, and 5d Transition Metals,
  Yoshihiko Okamoto, Haruka Matsumoto, Kousuke Yuchi, Yusaku Shinoda, Youichi Yamakawa, Daigorou Hirai, and Koshi Takenaka,
  International Conference on Quantum Liquid Crystals 2023, Sapporo, Japan, August 8-10, 2023 (poster).
• Neutron scattering studies of the candidate Kitaev material Na₂PrO₃,
  Ryutaro Okuma, Roger D. Johnson, Pascal Manuel, David Voneshen, and Radu Coldea,
  International Conference on Quantum Liquid Crystals 2023, Sapporo, Japan, August 8-10, 2023 (poster).
• Quantum critical phenomena caused by gradual structural variations in SrCo₂(Ge_1-xP_x)₂,
  Kodai Moriyama, Chishiro Michioka, Hiroaki Ueda, and Kazuyoshi Yoshimura,
  International Conference on Quantum Liquid Crystals 2023, Sapporo, Japan, August 8-10, 2023 (poster).
• Superconductivity in hexagonal zirconium telluride Zr₆MTe₂ (M = Fe, Co),
  Haruka Matsumoto, Zenji Hiroi, and Yoshihiko Okamoto,
  International Conference on Quantum Liquid Crystals 2023, Sapporo, Japan, August 8-10, 2023 (poster).
• Superconductivity in Ternary Telluride Sc₆MTe₂ with 3d, 4d, and 5d Transition Metals,
  Yoshihiko Okamoto, Yusaku Shinoda, Haruka Matsumoto, Kousuke Yuchi, Youichi Yamakawa, Daigorou Hirai, and Koshi Takenaka,
  Quantum Materials and Topology 2023, Pohang, Korea, June 27-29, 2023 (poster).
• Superconductivity in Ternary Telluride Sc₆MTe₂ with 3d, 4d, and 5d Transition Metals,
  Yoshihiko Okamoto,
  The Taiwan-Japan-Korea Symposium on Strongly Correlated Electron Sytems (TJK-21), Hsinchu, Taiwan, Apr. 6-7, 2023 (invited).

• Presentations before Mar. 2022 (Okamoto)