Counting of the Chern Number (IMAGE)

Max Planck Institute for Chemical Physics of Solids

Counting of the Chern Number

Caption

Counting of the topological charge, called the Chern number (C). Strong spin-orbit coupling is induced by heavier elements as indicated by the deeper background color of the pictured elements. Stronger spin-orbit coupling leads to more obvious split Fermi arcs. This allows the number of states crossing the closed loop to be counted, which determines the Chern number.

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© MPI CPfS

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