Pairing Interactions and Gibbs Adsorption at the Liquid Bi-In Surface: A Resonant X-Ray Reflectivity Study

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Pairing Interactions and Gibbs Adsorption at the Liquid Bi-In Surface: A Resonant X-Ray Reflectivity Study

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Title: Pairing Interactions and Gibbs Adsorption at the Liquid Bi-In Surface: A Resonant X-Ray Reflectivity Study
Author: DiMasi, E.; Tostmann, H.; Shpyrko, O. G.; Huber, P.; Ocko, B. M.; Pershan, Peter S.; Deutsch, M.; Berman, L. E.

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Citation: DiMasi, E., H. Tostmann, O. G. Shpyrko, P. Huber, B. M. Ocko, Peter S. Pershan, M. Deutsch, and L. E. Berman. 2001. Pairing interactions and Gibbs adsorption at the liquid Bi-In surface: A resonant x-ray reflectivity study. Physical Review Letters 86(8): 1538-1541.
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Abstract: Resonant x-ray reflectivity measurements from the surface of liquid Bi22In78 find only a modest surface Bi enhancement, with 35 at.% 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.
Published Version: doi:10.1103/PhysRevLett.86.1538
Other Sources: http://liquids.deas.harvard.edu/peter/2001.pdf/01_2_InBi.prl.pdf
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:4419630

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  • FAS Scholarly Articles [6463]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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