Electronic structure and exchange interactions in altermagnetic MnGeP${}_2$ in the quasiparticle-self-consistent $GW$ approach

Ilteris K. Turan, Walter R L. Lambrecht, Jerome Jackson

The QS$GW$ method is used to study the electronic band structure, optical dielectric function, and exchange interactions in chalcopyrite, $I\bar{4}2d$, structure MnGeP${}_2$. The mat…