  The recently discovered interlayer Dzyaloshinskii-Moriya interaction (IL-DMI)
in multilayers with perpendicular magnetic anisotropy favors the canting of
spins in the in-plane direction and could thus enable new exciting spin
textures such as Hopfions in continuous multilayer films. A key requirement is
to control the IL-DMI and so in this study, the influence of an electric
current on the IL-DMI is investigated by out-of-plane hysteresis loops of the
anomalous Hall effect under applied in-plane magnetic fields. The direction of
the in-plane field is varied to obtain a full azimuthal dependence, which
allows us to quantify the effect on the IL-DMI. We observe a shift in the
azimuthal dependence of the IL-DMI with increasing current, which can be
understood from the additional in-plane symmetry breaking introduced by the
current flow. Using an empirical model of two superimposed cosine functions we
demonstrate the presence of a current-induced term that linearly increases the
IL-DMI in the direction of current flow. With this, a new easily accessible
possibility to manipulate 3D spin textures by current is realized. As most
spintronic devices employ spin-transfer or spin-orbit torques to manipulate
spin textures, the foundation to implement current-induced IL-DMI into
thin-film devices is broadly available.
