Debye screening of dislocations

I. Groma, G. Györgyi, B. Kocsis

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Debye-like screening by edge dislocations of some externally given stress is studied by means of a variational approach to coarse grained field theory. Explicitly given are the force field and the induced geometrically necessary dislocation (GND) distribution, in the special case of a single glide axis in 2D, for (i) a single edge dislocation and (ii) a dislocation wall. Numerical simulation demonstrates that the correlation in relaxed dislocation configurations is in good agreement with the induced GND in case (i). Furthermore, the result(ii) well predicts the experimentally observed decay length for the GND developing close to grain boundaries.

Original languageEnglish
Article number165503
JournalPhysical review letters
Volume96
Issue number16
DOIs
Publication statusPublished - May 11 2006

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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