The combined surface spectrum of a terrace on the (001) surface with 1D topological channel residing along the step-edge (IMAGE)

Max Planck Institute for Chemical Physics of Solids

The combined surface spectrum of a terrace on the (001) surface with 1D topological channel residing along the step-edge

Caption

It consist of six Dirac cones (located on the dashed circle) that represent the crystalline topological states coexisting with 1D linear spectrum (the X at the middle) that represents the helical metallic channel at the step edge.

Credit

© MPI CPfS

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