Fractional charge bound to a vortex in two dimensional topological crystalline insulators

29 Jun 2020 Lee Eunwoo Furusaki Akira Yang Bohm-Jung

We establish the correspondence between the fractional charge bound to a vortex in a textured lattice and the relevant bulk band topology in two-dimensional (2D) topological crystalline insulators. As a representative example, we consider the Kekule textured graphene whose bulk band topology is characterized by a 2D $\mathbb{Z}_{2}$ topological invariant $\nu_{\rm 2D}$ protected by inversion symmetry... (read more)

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  • MESOSCALE AND NANOSCALE PHYSICS