arXiv:1807.04141 [cond-mat.mes-hall]AbstractReferencesReviewsResources Classifications Subjects Themes Keywords higher-order topological insulators, helical mode, modes generically remain gapless, intrinsic higher order topological insulator, one-dimensional hinge modes generically remain Tags Journal Information Publisher Journal Year Month Volume Number Pages DOI URL Miscellaneous Typesetting Pages Language License Submit Reset