(Anti-)Altermagnetism from Orbital Ordering in the Ruddlesden-Popper Chromates Sr${}_{n+1}$Cr${}_n$O${}_{3n+1}$

Quintin N. Meier, Alberto Carta, Claude Ederer +1

Altermagnets are collinear antiferromagnets with spin-split electronic states. We introduce Ruddlesden-Popper chromates Sr${}_{n+1}$Cr${}_n$O${}_{3n+1}$ (including SrCrO${}_3$) as candidat…