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Препринт

The Density of Surface States in Weyl Semimetals

Verbus V. A., Protogenov A. P., Chulkov E. V.
Weyl semimetal is a three-dimensional material with a conical spectrum near an even number of point nodes, where two bands touch each other. Here we study spectral properties of surface electron states in such a system. We show that the density of surface states possesses a logarithmic singularity for the energy to 0. It decreases linearly at the intermediate energy of surface electron states and approaches zero. This universal behavioris a hallmark of the topological order that offers a new wide range of applications.