Topological magnon insulators in two-dimensional van der Waals ferromagnets CrSiTe${}_3$ and CrGeTe${}_3$: towards intrinsic gap-tunability

Fengfeng Zhu, Lichuan Zhang, Xiao Wang +14

The bosonic analogues of topological insulators have been proposed in numerous theoretical works, but their experimental realization is still very rare, especially for spin systems…