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Topological waveguide based on metamaterials of magnetic solitons
Gyungchoon Go, Ik-Sun Hong, Seo-Won Lee +2
We theoretically investigate coupled gyration modes of magnetic solitons whose distances to the nearest neighbors are staggered. In a one-dimensional bipartite lattice, analogous t…
SU(3) Topology of Magnon-Phonon Hybridization in 2D Antiferromagnets
Shu Zhang, Gyungchoon Go, Kyung-Jin Lee +1
Magnon-phonon hybrid excitations are studied theoretically in a two-dimensional antiferromagnet with an easy axis normal to the plane. We show that two magnon bands and one phonon…
Topological Magnon-Phonon Hybrid Excitations in Two-Dimensional Ferromagnets with Tunable Chern Numbers
Gyungchoon Go, Se Kwon Kim, Kyung-Jin Lee
We theoretically investigate magnon-phonon hybrid excitations in two-dimensional ferromagnets. The bulk bands of hybrid excitations, which are referred to as magnon-polarons, are a…