  We demonstrate that an electric field could activate the three low-energy
eigenmodes of the Neel-type skyrmion lattice via the electrically induced
Dzyaloshinskii-Moriya interaction. In particular, we predict that the relative
intensity of the clockwise rotation mode against the counter-clockwise rotation
mode is significantly enhanced for the electrical activation in comparison with
the magnetic activation. We also discover that the electrically and
magnetically active modes obey unique selection rules. These findings promise a
fresh pathway towards energy-efficient electrical manipulation of skyrmion
excitations for future skyrmion-based magnonics.
