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Effect of Surface Relaxation on Point Defects in the Vicinity of W (100) Surfaces
Author(s) -
Mhaskar S. P.,
Naik P. K.
Publication year - 1981
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.2221050229
Subject(s) - chemistry , physics , solid surface , activation energy , crystallography , atomic physics , chemical physics
Abstract Surface relaxations of W (100) planes and their effect on point defects are computed with the help of a program that can simulate various processes occurring in the bulk of a solid and in the vicinity of the surface. Formation energies of vacancies and divacancies at various depths from the W (100) surface are calculated. Effect of surface on the activation energies of detrapping reaction of helium from HeV is also investigated. It is observed that formation energies of point defects and activation energies of thermal detrapping reactions continue to decrease approaching the surface from the bulk of a solid.