Topological State tagged posts

Exotic new Topological State discovered in Dirac Semimetals

Spectrum of electronic states in a nanorod of cadmium arsenide (Cd3As2), a Dirac semi-metal. The newly predicted ‘hinge arc’ surface states can be seen connecting the surface projections of the bulk and surface Dirac fermion states (dashed lines). Credit: Zhijun Wang, Institute of Physics Chinese Academy of Sciences in Beijing

Protected surface states are akin to corner states of higher-order topological insulators. An international team of scientists has discovered an exotic new form of topological state in a large class of 3D semi-metallic crystals called Dirac semimetals...

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