Time-modulated DMI creates a Floquet topological phase in an XXZ magnon insulator, yielding gapped hybrid magnon bands and phase-tunable chiral edge states.
Let us consider the Hamiltonian ˆH (in this appendix we follow Ref
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Tunable multi-magnon Floquet topological edge states
Time-modulated DMI creates a Floquet topological phase in an XXZ magnon insulator, yielding gapped hybrid magnon bands and phase-tunable chiral edge states.