Lars Fritz

Institute for Theoretical Physics and Center for Extreme Matter and Emergent Phenomena, Utrecht University

Impurities in Dirac and Weyl systems have been studied extensively throughout the last decade. While generally considered a nuisance, impurities turn out to also be useful: they can serve as “sensor” to detect the electronic structure of the underlying state or even be used to engineer states with topological properties.
    I will discuss an unusual form of a Kondo effect in Dirac/Weyl systems as well as the impurity engineering of a Chern insulator and a one dimensional AIII insulator.

[1] Phys. Rev. B 92, 121109 (2015).
[2] Phys. Rev. B 93, 035137 (2016).
[3] Phys. Rev. B 99, 165413 (2019).
[4] Phys. Rev. B 103, 075115 (2021).