Weyl semimetals with a boundary at $z=0$ a photoemission study
D.Schmeltzer
TL;DR
This paper investigates the surface states of a Weyl semimetal with a boundary at z=0, using photoemission spectroscopy to reveal Fermi arcs and observe a one-dimensional chiral anomaly under an electric field.
Contribution
It derives the scattering Hamiltonian for a Weyl semimetal with a boundary and demonstrates the presence of Fermi arcs and chiral anomaly through photoemission analysis.
Findings
Fermi arcs connect the two Weyl nodes.
Presence of a one-dimensional chiral anomaly under electric field.
Photoemission spectrum confirms surface states.
Abstract
We consider a Weyl semimetal with two nodes and derive the scattering Hamiltonian in the presence of a boundary at . We compute the photoemission spectrum and demonstrate the presence of the Fermi arcs which connect the two nodes. In the presence of an electric field parallel to the scattering surface we observe the one dimensional chiral anomaly.
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Taxonomy
TopicsTopological Materials and Phenomena · Graphene research and applications · 2D Materials and Applications