3 papers
cond-mat.str-el2026
Interaction induced topological magnon in electron-magnon coupled systems
Kosuke Fujiwara, Takahiro Morimoto
We theoretically study the emergence of topological magnons in electron-magnon coupled systems. The magnon dispersion in a ferromagnet usually possesses an effective time reversal…
cond-mat.str-el2025
Topological phases of electrons induced by electron-magnon interactions
Kosuke Fujiwara, Takahiro Morimoto
Topological phases of electrons such as topological insulators and quantum Hall states typically require strong spin-orbit coupling or magnetic fields. In this study, we consider a…
cond-mat.str-el2025
Interaction-induced nonlinear magnon transport in noncentrosymmetric magnets
Kosuke Fujiwara, Takahiro Morimoto
We study the effect of the magnon-magnon interaction on the nonlinear magnon transport. The magnonmagnon interaction induces nonreciprocal magnon decay when the time-reversal symme…