Space group constraints on weak indices in topological insulators
Lattice translation symmetry gives rise to a large class of "weak" topological insulators (TIs), characterized by translation-protected gapless surface states and dislocation bound states. In this work we show that space group symmetries lead to constraints on the weak topological indices...
Main Authors: | , , |
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Format: | Journal article |
Published: |
American Physical Society
2017
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