2016
DOI: 10.1007/s40818-016-0015-3
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Edge States in Honeycomb Structures

Abstract: An edge state is a time-harmonic solution of a conservative wave system, e.g. Schrödinger, Maxwell, which is propagating (plane-wave-like) parallel to, and localized transverse to, a line-defect or "edge". Topologically protected edge states are edge states which are stable against spatially localized (even strong) deformations of the edge. First studied in the context of the quantum Hall effect, protected edge states have attracted huge interest due to their role in the field of topological insulators. Theore… Show more

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Cited by 78 publications
(154 citation statements)
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“…As k varies over B h , each map k → E b (k) is Lipschitz continuous and sweeps out a closed interval in R. The union of these intervals is the L 2 (R 2 )− spectrum of H (ε,0) . More detail on the general theory of periodic operators and the specific context of honeycomb structures appears in [22,23,24] and [25,19], respectively.…”
Section: Honeycomb Potentialsmentioning
confidence: 99%
“…As k varies over B h , each map k → E b (k) is Lipschitz continuous and sweeps out a closed interval in R. The union of these intervals is the L 2 (R 2 )− spectrum of H (ε,0) . More detail on the general theory of periodic operators and the specific context of honeycomb structures appears in [22,23,24] and [25,19], respectively.…”
Section: Honeycomb Potentialsmentioning
confidence: 99%
“…13 For 2D Schrödinger operators with honeycombsymmetric potentials, existence and stability of Dirac cones was established, explained, and studied [26,[132][133][134][135][136]186]. The Schrödinger operator with honeycomb lattice of point scatterers was considered in [263].…”
Section: On a Z 2 -Periodic Graph γ Having Just Two Vertices (Atoms)mentioning
confidence: 99%
“…5 in the book [213] and references therein (e.g., to Chuburin's work). See also somewhat related works [97,134,155,156,361]. It seems to the author that this topic has not been sufficiently studied yet.…”
Section: Inhomogeneous Equationsmentioning
confidence: 99%
“…The existence of the Dirac cone is attributed to the symmetry of the lattice; it is not affected by the geometric size of the inclusions in the crystal [24]. Because of the linear dispersion of the Dirac cone, breaking the T symmetry may open a nontrivial band gap and introduce edge states [25]. This process can be described by a two-band model [2].…”
Section: Introductionmentioning
confidence: 99%