2022/12/21 by J. P. Santos Pires, Pires, J. P. Santos
Materials Science · #Computational Physics (physics.comp-ph) #Disordered Systems and Neural Networks (cond-mat.dis-nn) #FOS: Physical sciences #Graphene research and applications #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Quantum Physics (quant-ph)
paper · pdf · doi:10.48550/arxiv.2212.11384
openalex publication_date 2022/12/21 · openalex created_date 2023/01/04 · openalex updated_date 2026/07/28
Topological semimetals are a class of novel three-dimensional (3D) electronic phases that feature topologically protected conical band-touchings at the Fermi level. These band-touching points are monopoles of Berry curvature in momentum space and effectively realize (3+1)-dimensional Weyl fermions as emergent quasiparticles. Such features are robust to perturbations but not completely insensitive to them. In this thesis, we explore the yet fertile ground of disordered Weyl semimetals (WSMs), most notably by analysing the effects of on-site random fields, random smooth potential regions, point-like scalar impurities, and lattice point-defects in their electronic structure and electrodynamic properties.