Time-modulated DMI creates a Floquet topological phase in an XXZ magnon insulator, yielding gapped hybrid magnon bands and phase-tunable chiral edge states.
We take the Ising part ofH(t) as the unperturbed Hamil- tonian and the transverse exchange interactions and the DMI as perturbations
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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.