Diffusion in the distortion field of a dislocation line

Diffusion of a classical particle on a simple Bravais lattice in the presence of a single dislocation line is analyzed using the Fokker-Planck equation derived from the continuous theory of dislocations. It is shown that in the d=2 case the diffusion coefficient is enhanced. This prediction is confi...

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Bibliographic Details
Published in:Physics letters. A 1993-04, Vol.175 (5), p.349-352
Main Authors: Krukowski, Stanisław, Turski, Łukasz A.
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Diffusion in solids
Exact sciences and technology
Physics
Theory of diffusion and ionic conduction in solids
Transport properties of condensed matter (nonelectronic)
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Summary:Diffusion of a classical particle on a simple Bravais lattice in the presence of a single dislocation line is analyzed using the Fokker-Planck equation derived from the continuous theory of dislocations. It is shown that in the d=2 case the diffusion coefficient is enhanced. This prediction is confirmed by the Monte Carlo simulation of the same diffusion process. A possible generalization of our results is briefly outlined.
ISSN:0375-9601
1873-2429
DOI:10.1016/0375-9601(93)90633-B