5 papers
Correlated topological-polarization surface states in the narrow-gap insulator FeSb2
Takahiro Iwagaki, Hideki Matsuoka, Ginta Hoshino +7
Strong electron correlations and band topology each generate rich quantum phases, but conflicting elemental requirements have largely kept them apart. Topological polarization offe…
Experimental quantification of electronic symmetry breaking through orbital hybridization phase
Shungo Aoyagi, Shunsuke Kitou, Yuiga Nakamura +2
Symmetry classification of crystal structures has been central to predicting physical properties of materials. While such structural classification identifies which physical respon…
Magnetoelectric Control of Toroidal Moment in Ferroaxial Crystal PbMnNiTeO
Shungo Aoyagi, Shunsuke Kitou, Taka-hisa Arima +1
Ferroic multipole orders break some symmetry and often activate unique physical properties, such as nonreciprocal directional dichroism and linear magnetoelectric effects. Here, we…
Emergent Cooperative Superstructures via Order-Disorder Kinetics in Molecule-Intercalated NbSe2
Taiga Ueda, Hideki Matsuoka, Shungo Aoyagi +12
The design of quantum states at heterointerfaces has enabled a variety of emergent phenomena. Among them, molecular intercalation superlattices have attracted attention as tunable…
Unraveling a chemical-bond-driven root of topology in three-dimensional chiral crystals
Shungo Aoyagi, Shunsuke Kitou, Yuiga Nakamura +6
Chirality manifests across multiple scales, yielding unique phenomena that break mirror symmetry. In chiral materials, unexpectedly large spin-filtering or photogalvanic effects ha…