The dynamic retardation of the motion of screw dislocations at point defects was investigated taking into account the excitation of transverse vibrations of dislocation elements both in the glide plane and in the plane normal to it. It was shown that the inclusion of the vibrations of the dislocation elements in the plane normal to the glide plane did not change the dependence of the retarding force upon the glide rate and defect concentration but considerably increased the magnitude of this force (specifically in the case of the isotropic model, the retarding force increased by a factor of 2).
Specific Features of the Dynamic Behavior of a Screw Dislocation under Excitation of Transverse Dislocation Vibrations. V.V.Malashenko: Physics of the Solid State, 2007, 49[4], 675-7