Pseudo field effects in type II Weyl semimetals: new probes for over tilted cones

Abstract

We study the effects of pseudo-magnetic fields on Weyl semimetals with over-tilted Weyl cones, or type II cones. We compare the phenomenology of the resulting pseudo-Landau levels in the type II Weyl semimetal to the known case of type I cones. We predict that due to the nature of the chiral Landau level resulting from a magnetic field, a pseudo-magnetic field, or their combination, the optical conductivity can be utilized to detect a type II phase and deduce the direction of the tilt. Finally, we discuss ways to engineer homogeneous and inhomogeneous type II semimetals via generalizations of known layered constructions in order to create controlled pseudo-magnetic fields and over-tilted cones.

arXiv comment12 pages, 8 figures

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• Hawking fragmentation and Hawking attenuation in Weyl semimetals
• Valley-dependent time evolution of coherent electron states in tilted anisotropic Dirac materials
• An algorithm for exact analytical solutions for tilted anisotropic Dirac materials
• Light-induced pseudo-magnetic fields in three-dimensional topological semimetals