3 papers
cond-mat.mes-hall2020
Dirac surface states in magnonic analogs of topological crystalline insulators
Hiroki Kondo, Yutaka Akagi
We propose magnonic analogs of topological crystalline insulators which possess Dirac surface states protected by the combined symmetry of time-reversal and half translation. Const…
cond-mat.mes-hall2019
Three-dimensional topological magnon systems
Hiroki Kondo, Yutaka Akagi, Hosho Katsura
We propose a class of models for a magnonic analog of topological insulators in three dimensions. The models have pseudo-time-reversal symmetry which ensures the existence of boson…
cond-mat.mes-hall2018
Topological Invariant for Magnon Spin Hall Systems
Hiroki Kondo, Yutaka Akagi, Hosho Katsura
We propose a definition of a topological invariant for magnon spin Hall systems which are the bosonic analog of two-dimensional topological insulators in class AII.…