@article{goudarzi_lee_2024, title={Tolerance and breakdown of topological protection in a disordered waveguide}, volume={124}, ISSN={["1077-3118"]}, DOI={10.1063/5.0197994}, abstractNote={We consider a disordered waveguide consisting of trivial dielectric and non-trivial magnetically anisotropic material. A topologically protected edge mode appears owing to the broken time-reversal symmetry of the non-trivial lattice. While the edge mode maintains under other position and radius disorders, the protection is immediately broken by applying a radius disorder to the non-trivial lattice. This breakdown originates from donor and acceptor modes occupying the topological bandgap. Furthermore, via the calculation of the Bott index, we show that Anderson localization occurs as a metal conducting gap changes to a topological gap along with increasing disorders.}, number={17}, journal={APPLIED PHYSICS LETTERS}, author={Goudarzi, Kiyanoush and Lee, Moonjoo}, year={2024}, month={Apr} }