Microscopic Structure of the Wetting Film at the Surface of Liquid Ga-Bi Alloys

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Microscopic Structure of the Wetting Film at the Surface of Liquid Ga-Bi Alloys

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Title: Microscopic Structure of the Wetting Film at the Surface of Liquid Ga-Bi Alloys
Author: Tostmann, H.; DiMasi, H.; Shpyrko, O. G.; Pershan, Peter S.; Ocko, B. M.; Deutsch, M.

Note: Order does not necessarily reflect citation order of authors.

Citation: Tostmann, H., E. DiMasi, O. G. Shpyrko, Peter S. Pershan, B. M. Ocko, and M. Deutsch. 2000. Microscopic structure of the wetting film at the surface of liquid Ga-Bi alloys. Physical Review Letters 84(19): 4385-4388.
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Abstract: X-ray reflectivity measurements of the binary liquid Ga-Bi alloy reveal a dramatically different surface structure above and below the monotectic temperature Tmono = 222°C. A Gibbs-adsorbed Bi monolayer resides at the surface in both regimes. However, a 30Å thick, Bi-rich wetting film intrudes between the Bi monolayer and the Ga-rich bulk for T>Tmono. The wetting film's internal structure, not hitherto measured, is determined with Å resolution, showing a concentration gradient not predicted by theory and a highly diffuse interface with the bulk phase.
Published Version: doi:10.1103/PhysRevLett.84.4385
Other Sources: http://liquids.deas.harvard.edu/peter/2000.pdf/00_1_GaBi.pdf
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:4428800

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  • FAS Scholarly Articles [6948]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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