Imaging Magnetic Switching in Orthogonally Twisted Stacks of a van der Waals Antiferromagnet

Abstract

Stacking van der Waals magnets holds promise for creating new hybrid materials with properties that do not exist in bulk materials. Here we investigate orthogonally twisted stacks of the van der Waals antiferromagnet CrSBr, aiming to exploit an extreme misalignment of magnetic anisotropy across the twisted interface. Using nitrogen-vacancy center microscopy, we construct vector maps of the magnetization, and track their evolution under an external field, in a range of orthogonally twisted compensated and uncompensated configurations differing by the number of layers. We show that twisted stacking consistently modifies the local magnetic switching behavior of constituent flakes, and that thes..