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arXiv · 1406.1507

The Density of Surface States in Weyl Semimetals

Alexander P. Protogenov·Valery A. Verbus·Evgueni V. Chulkov
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Abstract

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 $\varepsilon \to 0$. It decreases linearly at the intermediate energy of surface electron states and approaches zero as $\sqrt{1-\varepsilon}$ for $\varepsilon \to 1$. This universal behavior is a hallmark of the topological order that offers a new wide range of applications.

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Alexander P. Protogenov, Valery A. Verbus, Evgueni V. Chulkov. 2014-06-05. The Density of Surface States in Weyl Semimetals. https://arxiv.org/abs/1406.1507

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