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Annihilation of Frenkel Pairs in B.C.C. Metals (α‐Iron). I. The Case of the Unstressed Lattice (General Consideration)
Author(s) -
Ratishvili I. G.
Publication year - 1984
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221250213
Subject(s) - annihilation , vacancy defect , lattice (music) , frenkel defect , physics , distribution (mathematics) , condensed matter physics , distribution function , field (mathematics) , atomic physics , thermodynamics , quantum mechanics , mathematics , pure mathematics , mathematical analysis , acoustics
A model describing the Frenkel pair annihilation process is presented. There are postulated two factors governing the annihilation rate: the distribution function X ( r ), giving the initial relative spacing of components of a Frenkel pair, and the distribution function F ( r ), describing the field of potential barriers in the vicinity of a vacancy–interstitial pair. The analytical form of X ( r ) and F ( r ) functions is formulated and general expressions of the Frenkel pair annihilation rate and separation rate are obtained.