Amorphous topological insulators constructed from random point sets

  title={Amorphous topological insulators constructed from random point sets},
  author={Noah P. Mitchell and Lisa M. Nash and Daniel Hexner and Ari M. Turner and William T. M. Irvine},
  journal={Nature Physics},
The discovery that the band structure of electronic insulators may be topologically non-trivial has revealed distinct phases of electronic matter with novel properties1,2. Recently, mechanical lattices have been found to have similarly rich structure in their phononic excitations3,4, giving rise to protected unidirectional edge modes5–7. In all of these cases, however, as well as in other topological metamaterials3,8, the underlying structure was finely tuned, be it through periodicity, quasi… 

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