Topological Graphene Plasmons in a Plasmonic Realization of the Su–Schrieffer–Heeger Model
Topological Graphene Plasmons in a Plasmonic Realization of the Su–Schrieffer–Heeger Model
Graphene hybrids, made of thin insulators, graphene, and metals can support propagating acoustic plasmons (AGPs). The metal screening modifies the dispersion relation of usual graphene plasmons leading to slowly propagating plasmons, with record confinement of electromagnetic radiation. Here, we show that a graphene monolayer, covered by a thin dielectric material …