Motion of edge dislocation in the presence of prismatic loops and point defects was studied analytically. It was shown that at certain conditions, the velocity dependence of the drag force has two maxima and two minima.
Dynamic Drag of Edge Dislocation by Circular Prismatic Loops and Point Defects. V.V.Malashenko: Physica B, 2009, 404[21], 3890-3