Symmetry-Protected Zero Modes in Metamaterials Based on Topological Spin Texture
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DOI: 10.1103/physrevapplied.13.064058
Abstract: We predict the emergence of second-order topological insulators in the dynamics of spin-texture-based metamaterials. We propose that the quantized Chern number and the ${\mathbb{Z}}_{6}$ Berry phase can completely characterize the nontrivial topology. By studying the… read more here.
Keywords: symmetry protected; spin texture; symmetry; zero modes ... See more keywords
Nature of protected zero-energy states in Penrose quasicrystals
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DOI: 10.1103/physrevb.102.064210
Abstract: The electronic spectrum of the Penrose rhombus quasicrystal exhibits a macroscopic fraction of exactly degenerate zero energy states. In contrast to other bipartite quasicrystals, such as the kite-and-dart one, these zero energy states cannot be… read more here.
Keywords: nature protected; energy states; zero energy; protected zero ... See more keywords