ABSTRACT Non‐relativistic spin splitting in antiferromagnets has recently attracted considerable attention. Here, we present a universal framework for controlling such spin splitting by identifying and manipulating the key atomic distortions that govern it through external perturbations. We demonstrate this concept by tuning the spin‐splitting energy in three representative materials with diverse symmetries: inversion‐symmetric , ferroelectric , and / superlattices. Our results emphasize the essential role of higher‐order magnetic multipoles and the intrinsic structure‐spin correlations in these systems, thereby advancing current efforts to control spin splitting in real materials and motivating future experimental studies.
Ray et al. (Fri,) studied this question.