Defects and impurity centers, dislocations, and physics of strength

Interbranch scattering of an X-ray wave field in a strongly distorted region of the elastic field around a dislocation

E. V. Suvorov, I. A. Smirnova

Osipyan Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow region

Abstract: The case of a diffraction image of screw dislocations arranged parallel to the surface of a specimen has been studied experimentally and by methods of computer simulation. Special features of scattering of an X-ray wave field in a strongly distorted region near the dislocation core have been considered. It has been shown that the diffraction image in the vicinity of the defect is formed due to a superposition of new wave fields generated at each point of the elastic field around a dislocation with the existing fields.

Received: 13.05.2009

 English version: Physics of the Solid State, 2010, 52:2, 258–264

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