Abstract
The equilibrium surface segregation of Ag to the low-index surfaces of Cu single crystals is presented. It is found that the close-packed surface of the (111) orientation allows a high interaction parameter resulting in a discontinuous transition in the surface concentration against temperature, as well as a step in the segregation kinetics. In contrast, the rougher surfaces of the (110) and (100) orientations yield smaller interaction parameter values and a smooth transition in surface coverage against temperature is observed. Copyright © 1999 John Wiley & Sons, Ltd.
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