Time-modulated DMI creates a Floquet topological phase in an XXZ magnon insulator, yielding gapped hybrid magnon bands and phase-tunable chiral edge states.
The matrix elements of this effective Hamiltonian, up to second-order corrections in V , are given by (see, for example, complement BI of 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.