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On the Interaction between a Vacancy and a Dislocation in Metals
Author(s) -
Masuda K.
Publication year - 1980
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.2220990218
Subject(s) - vacancy defect , dislocation , core (optical fiber) , condensed matter physics , lattice (music) , binding energy , materials science , enhanced data rates for gsm evolution , crystallography , atomic physics , molecular physics , physics , chemistry , telecommunications , computer science , acoustics , composite material
The interaction Δ E vd between a vacancy and a (screw or an edge) dislocation in metals is investigated using a tight‐binding‐type electronic theory. The repulsive core‐core interaction energies at short distances are simulated by the Born‐Mayer potential. It is shown that there are systematic differences in the Δ E vd between the present results and those obtained by using a pair potential method. Furthermore, it is found that the atomic configuration around a vacancy in the dislocation core region is essentially different from that in the unperturbed lattice.