Microscopic Structure of the Wetting Film at the Surface of Liquid Ga-Bi Alloys
Access StatusFull text of the requested work is not available in DASH at this time ("dark deposit"). For more information on dark deposits, see our FAQ.
Shpyrko, O. G.
Ocko, B. M.
MetadataShow full item record
CitationTostmann, 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.
AbstractX-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.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:4428800
- FAS Scholarly Articles