Topological Corner States due to Boundary Defects
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DOI: 10.1088/0256-307x/43/1/010403
Abstract: In conventional higher-order topological insulators (HOTIs), the emergence of topological states can be explained by using the nonzero bulk polarization index. However, corner states emerge in HOTIs with incomplete boundary unit cells (i.e., boundary defects)… read more here.
Keywords: boundary defects; unit; incomplete unit; unit cells ... See more keywords