Spatial extent of the Dzyaloshinskii-Moriya interaction at metallic interfaces

Inversion-asymmetric stacks of metallic magnetic layers have often been exploited to control the chiral noncollinear ordering their moments. Here, authors investigate interfacial aspects Dzyaloshinskii-Moriya interaction, giving rise this ordering, and quantify its contributions within a couple atomic layers. This observation is further supported by first-principles calculations. The confirmation short spatial extent DMI expected enable synthesis dense multilayers offer possibilities for engineering spintronic properties.