Figure 1
From: Theory of Kerr and Faraday rotations and linear dichroism in Topological Weyl Semimetals
(a) Schematic k-space picture showing the location of Weyl nodes (blue and red dots with outward arrows as sources and inward arrows as sinks of Berry curvature) along kz axis in bulk Brillouin zone (BZ) and the Fermi arcs (lines ending at the projection of the Weyl nodes) on the surface BZ’s, shown as blue squares. Note that surfaces perpendicular to z axis have no arcs. (b,c) Real-space geometry of slab and electromagnetic waves. The blue (dark) surfaces of slabs support the arc surface-states and yellow (light) surfaces are ones without surface states. In (b) we show the Kerr θK and Faraday θF angles. For geometry shown in (c) there are no Kerr and Faraday rotations, instead E acquires a longitudinal component inside the Weyl semimetal.
