Affiliation:
1. Solid State Laboratory, Institute of Radiophysics and Electronics, Armenian National Academy of Sciences, Ashtarak-2, 0203, Armenia
Abstract
Dynamics of a pinned dislocation kink controlled by the acting DC and AC forces is studied analytically. The motion of the kink, described by sine-Gordon (sG) equation, is explored within the framework of McLaughlin–Scott perturbation theory. Assuming weakness of the acting AC force, the equation of motion of the dislocation kink in the pinning potential is linearized. Based on the equations derived, we study stochastic behavior of the kink, and determine the probability of its depinning. The dependencies of the depinning probability on DC and AC forces are analyzed in detail.
Publisher
World Scientific Pub Co Pte Lt
Subject
Condensed Matter Physics,Statistical and Nonlinear Physics
Reference25 articles.
1. Dislocation Dynamics and Plasticity
2. K. Maeda and S. Takeuchi, Dislocations in Solids, eds. F. R. N. Nabarro and M. S. Duesbery (Elsevier, North-Holland, Amsterdam, 1996) p. 443.
3. Multi-phonon capture of charge carriers by dislocation kinks in semiconductors