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Title: Surface composition of clean and oxygen-covered Au3Cu alloy
Authors: Poon, H.C. 
Khanra, B.C.
King, T.S.
Issue Date: 1993
Citation: Poon, H.C., Khanra, B.C., King, T.S. (1993). Surface composition of clean and oxygen-covered Au3Cu alloy. Physical Review B 47 (24) : 16494-16498. ScholarBank@NUS Repository.
Abstract: Surface segregation behavior of clean and oxygen-adsorbed Au3Cu systems has been studied theoretically within the tight-binding formalism. It has been found that for the clean Au3Cu system the top layer is Au enriched, while the second layer is Cu enriched. In the presence of a monolayer of oxygen atoms, on the other hand, there is a segregation reversal in the top layer which becomes Cu enriched. The above findings are in total agreement with the very recent experimental impact collision ion-scattering spectroscopic results. © 1993 The American Physical Society.
Source Title: Physical Review B
ISSN: 01631829
DOI: 10.1103/PhysRevB.47.16494
Appears in Collections:Staff Publications

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