Rashba Spin Demons in Two-Dimensional d-Wave Altermagnets and their Electrostatic Contro

Muhammad Irfan Sarwar, Mohsin Raza, Kashif Sabeeh

Spin demons in d-wave altermagnets are acoustic collective excitations produced by nearly out-ofphase motion of spin-split quasiparticle populations. We identify a new mode, Rashba…