  Interfacial Dzyaloshinskii-Moriya interaction (DMI) is experimentally
investigated in Pt/Co/Pt multilayer films under strain. A strong variation
(from 0.1 to 0.8 mJ/m$^2$) of the DMI constant is demonstrated at $\pm 0.1\%$
in-plane uniaxial deformation of the films. The anisotropic strain induces
strong DMI anisotropy. The DMI constant perpendicular to the strain direction
changes sign while the constant along the strain direction does not. Estimates
are made showing that DMI manipulation with an electric field can be realized
in hybrid ferroelectric/ferromagnetic systems. So, the observed effect opens
the way to manipulate the DMI and eventually skyrmions with a voltage via a
strain-mediated magneto-electric coupling.
