  In this work, we study the microscopic dynamics of distorted skyrmions in
strained chiral magnets [K. Shibata et al., Nat. Nanotech. 10, 589 (2015)]
under gradient magnetic field or electric current by Landau-Lifshitz-Gilbert
simulations of the anisotropic spin model. It is observed that the dynamical
responses are also anisotropic, and the velocities of the distorted skyrmions
are periodically dependent on the directions of the external stimuli.
Furthermore, in addition to the uniform motion, our work also demonstrates
anti-phase harmonic vibrations of the two skyrmions in nanostripes, and the
frequencies are mainly determined by the exchange anisotropy. The simulated
results are well explained by Thiele theory, which may provide useful
information in understanding the dynamics of the distorted skyrmions in
strained chiral magnets.
