ARPES maps the electronic properties, including the band structure and Fermi surface, of the topological insulator bismuth selenide (left). Like graphene, the lower energy valence band of a ...
The electron world, where electrons (dwarfs) explore their energy band (beach), can be manipulated using external fields or light in strongly correlated insulators. This ability enables new electronic ...
The exactly quantized magneto-optical response of a topological insulator is a direct result of the Berry phase protected states on its surface. The most well-known example of a topological phase is a ...
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