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Formation and Growth of Subsurface Cobalt Clusters in Copper
Author(s) -
Lubov Maxim,
Kulikov Dmitri,
Trushin Yuri
Publication year - 2017
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.201700250
Subject(s) - cobalt , copper , cluster (spacecraft) , materials science , dissociation (chemistry) , deposition (geology) , chemistry , metallurgy , geology , paleontology , sediment , computer science , programming language
Growth of subsurface cobalt clusters during the deposition of cobalt on copper substrate has been studied through kinetic modeling. It is shown that, in comparison with reverse transposition, the formation of subsurface clusters is caused by a strong dissociation of surface cobalt clusters and preferential transposition of surface cobalt atoms to subsurface copper layers. Cobalt clusters’ size distribution functions are calculated for the different deposition times. Values of the migration energy of cobalt atoms in subsurface layers of copper, and the binding energy of subsurface cobalt atoms with the subsurface cobalt cluster are estimated.