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Title: Size-mismatch effect on the surface segregation of AuCu3 alloys
Authors: Yong, Y.C.
Poon, H.C. 
Keywords: Alloys
Low energy ion scattering (LEIS)
Surface segregation
Issue Date: 10-Sep-1995
Citation: Yong, Y.C.,Poon, H.C. (1995-09-10). Size-mismatch effect on the surface segregation of AuCu3 alloys. Surface Science 338 (1-3) : L825-L832. ScholarBank@NUS Repository.
Abstract: A microscopic electronic theory is presented for the study of surface segregation of transition metal alloys. The total energy is written as a sum of attractive band structure energy and repulsive Born-Mayer-type interaction. The size-mismatch effect is treated within this electronic model instead of being introduced as a parameter. Through minimization of the surface free energy, the equilibrium concentration profile and surface relaxation of different faces of AuCu3 are obtained as a function of temperature and compared with experimental data by low energy ion scattering (LEIS). © 1995.
Source Title: Surface Science
ISSN: 00396028
Appears in Collections:Staff Publications

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