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Quantized circular photogalvanic effect in Weyl semimetals
Fernando de Juan, Adolfo G. Grushin, Takahiro Morimoto +1
The circular photogalvanic effect (CPGE) is the part of a photocurrent that switches depending on the sense of circular polarization of the incident light. It has been consistently…
Dynamical piezoelectric and magnetopiezoelectric effects in polar metals from Berry phases and orbital moments
Daniel Varjas, Adolfo G. Grushin, Roni Ilan +1
The polarization of a material and its response to applied electric and magnetic fields are key solid-state properties with a long history in insulators, although a satisfactory th…
Inhomogeneous Weyl and Dirac semimetals: Transport in axial magnetic fields and Fermi arc surface states from pseudo Landau levels
Adolfo G. Grushin, Jorn W. F. Venderbos, Ashvin Vishwanath +1
Topological Dirac and Weyl semimetals have an energy spectrum that hosts Weyl nodes appearing in pairs of opposite chirality. Topological stability is ensured when the nodes are se…
Chern numbers and chiral anomalies in Weyl butterflies
Sthitadhi Roy, Michael Kolodrubetz, Joel E. Moore +1
The Hofstadter butterfly of lattice electrons in a strong magnetic field is a cornerstone of condensed matter physics, exploring the competition between periodicities imposed by th…
Theory of a 3+1D fractional chiral metal: interacting variant of the Weyl semimetal
Tobias Meng, Adolfo G. Grushin, Kirill Shtengel +1
Formulating consistent theories describing strongly correlated metallic topological phases is an outstanding problem in condensed matter physics. In this work we derive a theory de…