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Plasmon geometric phase and plasmon Hall shift
Li-kun Shi, Justin C. W. Song
The collective plasmonic modes of a metal comprise a pattern of charge density and tightly-bound electric fields that oscillate in lock-step to yield enhanced light-matter interact…
Long-lived domain wall plasmons in gapped bilayer graphene
Eddwi H. Hasdeo, Justin C. W. Song
Topological domain walls in dual-gated gapped bilayer graphene host edge states that are gate- tunable and valley polarized. Here we predict that plasmonic collective modes can pro…
Large optical conductivity of Dirac semimetal Fermi arc surfaces states
Li-kun Shi, Justin C. W. Song
Fermi arc surface states, a hallmark of topological Dirac semimetals, can host carriers that exhibit unusual dynamics distinct from that of their parent bulk. Here we find that Fer…
Fermi arc plasmons in Weyl semimetals
Justin C. W. Song, Mark S. Rudner
In the recently discovered Weyl semimetals, the Fermi surface may feature disjoint, open segments -- the so-called Fermi arcs -- associated with topological states bound to exposed…