# Non-Hermitian dislocation modes: Stability and melting across exceptional points

@article{Panigrahi2022NonHermitianDM, title={Non-Hermitian dislocation modes: Stability and melting across exceptional points}, author={Archisman Panigrahi and Roderich Moessner and Bitan Roy}, journal={Physical Review B}, year={2022} }

The traditional bulk-boundary correspondence assuring robust gapless modes at the edges and surfaces of insulating and nodal topological materials gets masked in non-Hermitian (NH) systems by the skin eﬀect, manifesting an accumulation of a macroscopic number of states near such interfaces. Here we show that dislocation lattice defects are immune to such skin eﬀect or at most display a weak skin eﬀect (depending on its relative orientation with the Burgers vector), and as such they support…

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