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Designing inversion symmetry breaking, together with magnetic ordering and strong spin–orbit coupling, enables spin-dependent electronic differentiation in solids, giving rise to topological spin textures, unconventional charge and spin transport, novel band structures, and strong magnetoelectric coupling. Harnessing these effects offers compelling opportunities for spin-based electronic functionalities of broad interest to condensed matter physics and materials science. When materials are reduced to the two-dimensional (2D) limit, inversion asymmetry becomes more readily tunable through crystal chemistry, stacking, interfacial design, and external fields, providing additional degrees of freedom for accessing emergent spin phenomena. Here, we review the most widely studied quasi-2D vdWs magnets, summarize common routes for achieving and controlling spatial inversion symmetry breaking, and discuss the major consequences of inversion asymmetry in 2D magnetic systems. Finally, we outline key open questions and promising directions for future investigations.
Zhang et al. (Tue,) studied this question.