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Topological insulators

The next generation

Spin–orbit coupling in some materials leads to the formation of surface states that are topologically protected from scattering. Theory and experiments have found an important new family of such materials.

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Figure 1: 'Light-like' electrons, protected by time-reversal symmetry, in topological insulators.


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Moore, J. The next generation. Nature Phys 5, 378–380 (2009).

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