10 citations · 17 across the 5 of their papers we have counts for
5 papers
Optical Response Beyond Magnetic Symmetries
Javier Sivianes, Enrique Boquete-Someso, Daniel Hernangómez-Pérez +1
The optical response of magnetic materials is conventionally classified through magnetic space groups (MSGs), where spin and lattice are locked by the relativistic spin-orbit inter…
Linear response of the Chern insulator MnBiTe: A Wannier function approach
Matthew Albert, Javier Sivianes, Jason G. Kattan +2
Recent work demonstrated that in the long wavelength limit the linear response of a Chern insulator to finite-frequency electric fields is the sum of two terms: A general frequency…
Surface-state engineering for nonlinear charge and spin photocurrent generation
Javier Sivianes, Peio Garcia-Goiricelaya, Daniel Hernangómez-Pérez +1
We systematically explore a pathway for generating nonlinear charge and spin photocurrents using spin-orbit-split surface states. This mechanism enables net charge and spin flow al…
Optical signatures of spin symmetries in unconventional magnets
Javier Sivianes, Flaviano José dos Santos, Julen Ibañez-Azpiroz
The concept of spin symmetries has gained renewed interest as a valuable tool for classifying unconventional magnetic phases, including altermagnets and recently identified p-wave…
Shift photoconductivity in the Haldane model
Javier Sivianes, Julen Ibañez-Azpiroz
The shift current is part of the second-order optical response of materials with a close connection to topology. Here we report a sign inversion in the band-edge shift photoconduct…