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| Dirac Cones - PhysicsWorld |
Physicists in the US have done calculations that suggest "Dirac cones" exist in thin films made of bismuth and antinomy. Dirac cones are features in the electronic band structure of a 2D material where the conduction and valence bands meet in a single point at the Fermi level...According to Tang, the films could also form the base material for next-generation electronic devices. "Electron speeds in devices made of bismuth–antimony would be hundreds of times greater than those in current silicon devices," he says.
Physics World: Dirac cones could exist in bismuth–antimony films
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