Observation of the solid and liquid separation after the shock propagation in a two-dimensional Yukawa solid

After the propagation of compressional shocks in a two-dimensional (2D) Yukawa solid, the structure and dynamics of the postshock region are investigated using molecular dynamical simulations. When the compressional speed is significantly higher than 0.354a0ωpd, the postshock region melts completely; however, when this compressional speed is much lower than 0.283a0ωpd, the postshock region is still in the solid state. It is found that, when the...