156 citations · 971 across the 45 of their papers we have counts for
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Berry Phases in Symmetry Protected Topological Phases
Toshikaze Kariyado, Takahiro Morimoto, Yasuhiro Hatsugai
We show that the Berry phase (Berry phase quantized into ) provides a useful tool to characterize symmetry protected topological phases with correlation that can be dir…
Counting Pseudo Landau Levels in Spatially Modulated Dirac Systems
Toshikaze Kariyado
In a system with Dirac cones, spatial modulation in material parameters induces a pseudo magnetic field, which acts like an external magnetic field. Here, we derive a concise formu…
Many-Body Chern Numbers of and States on Various Lattices
Koji Kudo, Toshikaze Kariyado, Yasuhiro Hatsugai
For various two dimensional lattices such as honeycomb, kagome, and square-octagon, gauge conventions (string gauge) realizing minimum magnetic fluxes that are consistent with the…
Evolution of Band Topology by Competing Band Overlap and Spin-Orbit Coupling: Twin Dirac Cones in BaSnO as a Prototype
Toshikaze Kariyado, Masao Ogata
We theoretically demonstrate how competition between band inversion and spin-orbit coupling (SOC) results in nontrivial evolution of band topology, taking antiperovskite BaSnO…