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Publication
Physical Review Letters
Paper
Evidence for crystal-face specificity in surface segregation of CuNi alloys
Abstract
We present experimental evidence for crystal-face specificity in surface segregation at CuNi alloy surfaces using angular x-ray photoemission spectroscopy, secondary-ion mass spectroscopy, and "chemisorptive titration" techniques. More copper enrichment is found on the (100) surface than the (111) surface of a 17% Cu-83% Ni alloy, in agreement with predictions from current segregation theories. © 1981 The American Physical Society.