Evolution of the correlation functions in 2D dislocation systems

Details Evolution of the correlation functions in 2D dislocation systems Evolution of the correlation functions in 2D dislocation systems

2008-05-09

arxiv.org/abs/0805.1334v2

Phys. Rev. B 78, 024119 (2008)

Physics

Condensed Matter

Statistical Mechanics

11 pages, 4 figures, accepted for publication in Physical Review B

Scientific paper

10.1103/PhysRevB.78.024119

In this paper spatial correlations of parallel edge dislocations are studied. After closing a hierarchy of equations for the many-particle density functions by the Kirkwood superposition approximation, we derive evolution equations for the correlation functions. It is found that these resulting equations and those governing the evolution of density fields of total as well as geometrically necessary dislocations around a single edge dislocation are formally the same. The second case corresponds to the already described phenomenon of Debye screening of an individual dislocation. This equivalence of the correlation functions and screened densities is demonstrated also by discrete dislocation dynamics simulation results, which confirm the physical correctness of the applied Kirkwood superposition approximation. Relation of this finding and the linear response theory in thermal systems is also discussed.

Affiliated with

Also associated with

No associations

Rating

Evolution of the correlation functions in 2D dislocation systems does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Evolution of the correlation functions in 2D dislocation systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evolution of the correlation functions in 2D dislocation systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-332451