  The Dzyaloshinskii-Moriya interaction (DMI), which is essential for the
stabilization of topologically non-trivial chiral magnetic textures such as
skyrmions, is particularly strong in heterostructures of ultra-thin magnetic
materials and heavy elements. We explore by density-functional theory
calculations the possibility to modify the magnetic properties at Co/Pt
interfaces with chemical disorder. In these systems, we find a particular
robustness of the DMI against intermixing. Upon dusting the interface with a
third element (all $4d$ transition metals and B, Cu, Au and Bi), a strong
reduction of the DMI is predicted. This opens up possibilities to tune the DMI
through the degrees of intermixing and dusting.
