DiMasi, ElaineElaineDiMasiTostmann, HolgerHolgerTostmannShpyrko, OlegOlegShpyrkoHuber, PatrickPatrickHuberOcko, Benjamin M.Benjamin M.OckoPershan, Peter S.Peter S.PershanDeutsch, MosheMosheDeutschBerman, Lonny E.Lonny E.Berman2022-06-072022-06-072004-12-05Phys. Rev. Lett. 86 (8): 1538-1541 (2004-12-05)http://hdl.handle.net/11420/12827Resonant x-ray reflectivity measurements from the surface of liquid Bi22In78 find only a modest surface Bi enhancement, with 35 atomic % Bi in the first atomic layer. This is in contrast to the Gibbs adsorption in all liquid alloys studied to date, which show surface segregation of a complete monolayer of the low surface tension component. This suggests that surface adsorption in Bi-In is dominated by attractive interactions that increase the number of Bi-In neighbors at the surface. These are the first measurements in which resonant x-ray scattering has been used to quantify compositional changes induced at a liquid alloy surface.en1079-71142004815381541American Physical SocietyPhysics - Statistical MechanicsPhysics - Statistical MechanicsPhysics - Materials SciencePhysikJournal Article10.1103/PhysRevLett.86.15380412103v1Other