Infinite Berry Curvature of Weyl Fermi Arcs

We show that Weyl Fermi arcs are generically accompanied by a divergence of the surface Berry curvature scaling as $1/k^2$, where $k$ is distance to hot-line in Brillouin zone connects projection nodes with opposite chirality but which distinct from arc itself. Such appears whenever bulk dispersion has velocity tilt toward interest. This reflected variety mediated effects readily accessible experimentally, and particular leads dipole grows linearly thickness slab semimetal material limit long lifetime states. implies emergence gigantic contribution non-linear Hall effect such devices.