Surface segregation in CuxNi1-xalloy
Journal
Solid State Communications
Journal Volume
59
Journal Issue
4
Pages
253-256
Date Issued
1986
Author(s)
Abstract
The tight-bonding Hartree Hamiltonian and a mixed Bethe-lattice approximation is used to study the surface segregation phenomenon of CuxNi1-x alloy. It is found that Ni atoms do segregate to the surface layer in the Cu-rich range (0.75 < x < 1). This is in contrast with previous theories which predict the enrichment of Cu atoms at the surface for all bulk Cu concentrations. However, the present theory agrees reasonably well with the recent experimental observation of a crossover at x = 0.84 by Hashizume et al. [1]. © 1986.
Type
journal article