Impurity screening and stability of Fermi arcs against Coulomb and magnetic scattering in a Weyl monopnictide
Impurity screening and stability of Fermi arcs against Coulomb and magnetic scattering in a Weyl monopnictide
We present a quasiparticle interference study of clean and Mn surface-doped TaAs, a prototypical Weyl semimetal, to test the screening properties as well as the stability of Fermi arcs against Coulomb and magnetic scattering. Contrary to topological insulators, the impurities are effectively screened in Weyl semimetals. The adatoms significantly enhance …