Exploring emergent phenomena of quantum materials arising from spontaneous symmetry breaking — through theory.
Past news, organized by year.
We will host the 39th Applied Physics Colloquium by Dr. Kyohei Nakamura (Graduate School of Science, Kyoto University).
Title: "Superconducting diode effect from nonreciprocal magnetism in strongly correlated electron systems" (talk in Japanese)
Date: Fri., November 27, 2026, 16:30–18:00
Venue: Academic Lounge 3, Faculty of Engineering
Everyone is welcome.
Prof. Liang Wu (University of Pennsylvania) visited the group and gave a seminar on his recent work. Thank you!
The Young Chirality Research Workshop was held at Hokkaido University on August 4–7, 2026. We thank all the participants for joining. We gratefully acknowledge the support of Grant-in-Aid for Transformative Research Areas (A) "New Physics Opened by Chimera Quasiparticles" and Grant-in-Aid for Transformative Research Areas (A) "Quantum Emergence Tackled by Correlation Design".
Our collaboration with UTokyo and Tohoku U. was published in Physical Review Letters.
(Dual-Circular Raman Optical Activity of Axial Multipolar Order)
Our collaboration with Institute of Science Tokyo and the University of Tokyo was published in Physical Review Letters, selected as an Editors' Suggestion.
The paper was featured by Prof. Atsushi Fujimori in the Condensed Matter Journal Club.
(Raman Optical Activity Induced by Ferroaxial Order in NiTiO3)
A collaboration with the University of Tokyo, Tohoku University, RIKEN and TMU was published in Advanced Materials.
(Evidence for Itinerant Ferromagnetic Flat Bands Producing Large Transverse Responses)
Our collaborator Tristan Ryoma Fuchs received an Excellent Poster Award at the Spring School of Computational Physics 2026. Congratulations!
A collaboration with the University of Tokyo, RIKEN and Tohoku University was published in Physical Review B.
(Quantum geometry in low-energy linear and nonlinear optical responses of the magnetic Rashba semiconductor (Ge,Mn)Te)
Our collaborator Jin Matsuda visited the group and gave a seminar on his recent work.
Work led by our collaborator Kohei Hattori was published in Physical Review Letters.
(Dirac Charge in Antiferromagnetic Topological Semimetals)
A review on altermagnets, co-authored by researchers from Japan, Czechia, Germany, the USA and China (incl. H. Watanabe), was published in Nature.
(Symmetry, microscopy and spectroscopy signatures of altermagnetism)
A collaboration with Tohoku, Osaka, JAEA and Kyoto was published in Nature Communications.
(Transport evidence of current-induced nematic Dirac valleys in a parity-time-symmetric antiferromagnet)
A collaboration with the University of Tokyo and KEK was published as a Letter in Physical Review Materials.
(Realization of a two-dimensional d-wave altermagnet in La2O3Mn2Se2)