Tunneling transport across electrical potential barriers in Weyl semimetals with tilted energy
dispersion is investigated. We report that the electrons around different valleys experience
opposite direction refractions at the barrier interface when the energy dispersion is tilted
along one of the transverse directions. Chirality dependent refractions at the barrier interface
polarize the Weyl fermions in angle-space according to their valley index. A real magnetic
barrier configuration is used to select allowed transmission angles, which results in …