Tunable Weyl fermions and Fermi arcs in magnetized topological crystalline insulators
Mesoscale and Nanoscale Physics
2016-04-15 v1 Materials Science
Abstract
Based on analysis and realistic tight-binding calculations, we find that time-reversal-breaking Weyl semimetals can be realized in magnetically-doped (Mn, Eu, Cr etc.) SnPb(Te,Se) class of topological crystalline insulators. All the Weyl points are well separated in momentum space and possess nearly the same energy due to high crystalline symmetry. Moreover, both the Weyl points and Fermi arcs are highly tunable by varying Pb/Sn composition, pressure, magnetization, temperature, surface potential etc., opening up the possibility of manipulating Weyl points and rewiring the Fermi arcs.
Keywords
Cite
@article{arxiv.1604.03947,
title = {Tunable Weyl fermions and Fermi arcs in magnetized topological crystalline insulators},
author = {Junwei Liu and Chen Fang and Liang Fu},
journal= {arXiv preprint arXiv:1604.03947},
year = {2016}
}