X-ray Reflectivity Studies of Atomic-Level Surface-Segregation in a Liquid Eutectic Alloy of AuSn

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X-ray Reflectivity Studies of Atomic-Level Surface-Segregation in a Liquid Eutectic Alloy of AuSn

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Title: X-ray Reflectivity Studies of Atomic-Level Surface-Segregation in a Liquid Eutectic Alloy of AuSn
Author: Balagurusamy, Venkatachalapathy S. K.; Streitel, Reinhard; Shpyrko, Oleg G.; Pershan, Peter S.; Meron, Mati; Lin, Binhua

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Citation: Balagurusamy, Venkatachalapathy S. K., Reinhard Streitel, Oleg G. Shpyrko, Peter S. Pershan, Mati Meron, and Binhua Lin. 2007. X-ray reflectivity studies of atomic-level surface-segregation in a liquid eutectic alloy of AuSn. Physical Review B 75(104209).
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Abstract: X-ray reflectivity studies reveal atomic-level surface-segregation at the free surface of the eutectic Au71Sn29 liquid alloy. The surface-segregation extends up to three layers, in which the top layer is almost a pure monolayer of Sn, the second layer is almost a pure monolayer of Au and the third layer appears to be slightly enhanced in Au. Although the surface-segregation concentration profiles can be qualitatively accounted for by the theories of Defay-Prigogine and Strohl-King, they cannot satisfactorily account for the measured surface tension.
Published Version: doi:10.1103/PhysRevB.75.104209
Other Sources: http://www.liquids.deas.harvard.edu/peter/2007.pdf/AuSn-PRB75-07.pdf
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:4419769

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  • FAS Scholarly Articles [7594]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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