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Title: Atomic-Scale Surface Demixing in a Eutectic Liquid BiSn Alloy

Abstract

Resonant x-ray reflectivity of the surface of the liquid phase of the Bi{sub 43}Sn{sub 57} eutectic alloy reveals atomic-scale demixing extending over three near-surface atomic layers. Because of the absence of an underlying atomic lattice which typically defines adsorption in crystalline alloys, studies of adsorption in liquid alloys provide unique insight on interatomic interactions at the surface. The observed composition modulation could be accounted for quantitatively by the Defay-Prigogine and Strohl-King multilayer extensions of the single-layer Gibbs model, revealing a near-surface domination of the attractive Bi-Sn interaction over the entropy.

Authors:
; ; ; ;  [1];  [2];  [3]; ;  [4]
  1. Department of Physics and DEAS, Harvard University, Cambridge, Massachusetts 02138 (United States)
  2. Department of Physics, Bar-Ilan University, Ramat-Gan 52900 (Israel)
  3. Department of Physics, Brookhaven National Laboratory, Upton, New York 11973 (United States)
  4. CARS, University of Chicago, Chicago, Illinois 60637 (United States)
Publication Date:
OSTI Identifier:
20699399
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 95; Journal Issue: 10; Other Information: DOI: 10.1103/PhysRevLett.95.106103; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ADSORPTION; BINARY ALLOY SYSTEMS; BISMUTH ALLOYS; ENTROPY; EUTECTICS; LAYERS; LIQUID METALS; REFLECTIVITY; SEGREGATION; SURFACES; TIN ALLOYS; X RADIATION

Citation Formats

Shpyrko, Oleg G, Grigoriev, Alexei Yu, Streitel, Reinhard, Pontoni, Diego, Pershan, Peter S, Deutsch, Moshe, Ocko, Ben, Meron, Mati, and Binhua, Lin. Atomic-Scale Surface Demixing in a Eutectic Liquid BiSn Alloy. United States: N. p., 2005. Web. doi:10.1103/PhysRevLett.95.106103.
Shpyrko, Oleg G, Grigoriev, Alexei Yu, Streitel, Reinhard, Pontoni, Diego, Pershan, Peter S, Deutsch, Moshe, Ocko, Ben, Meron, Mati, & Binhua, Lin. Atomic-Scale Surface Demixing in a Eutectic Liquid BiSn Alloy. United States. https://doi.org/10.1103/PhysRevLett.95.106103
Shpyrko, Oleg G, Grigoriev, Alexei Yu, Streitel, Reinhard, Pontoni, Diego, Pershan, Peter S, Deutsch, Moshe, Ocko, Ben, Meron, Mati, and Binhua, Lin. 2005. "Atomic-Scale Surface Demixing in a Eutectic Liquid BiSn Alloy". United States. https://doi.org/10.1103/PhysRevLett.95.106103.
@article{osti_20699399,
title = {Atomic-Scale Surface Demixing in a Eutectic Liquid BiSn Alloy},
author = {Shpyrko, Oleg G and Grigoriev, Alexei Yu and Streitel, Reinhard and Pontoni, Diego and Pershan, Peter S and Deutsch, Moshe and Ocko, Ben and Meron, Mati and Binhua, Lin},
abstractNote = {Resonant x-ray reflectivity of the surface of the liquid phase of the Bi{sub 43}Sn{sub 57} eutectic alloy reveals atomic-scale demixing extending over three near-surface atomic layers. Because of the absence of an underlying atomic lattice which typically defines adsorption in crystalline alloys, studies of adsorption in liquid alloys provide unique insight on interatomic interactions at the surface. The observed composition modulation could be accounted for quantitatively by the Defay-Prigogine and Strohl-King multilayer extensions of the single-layer Gibbs model, revealing a near-surface domination of the attractive Bi-Sn interaction over the entropy.},
doi = {10.1103/PhysRevLett.95.106103},
url = {https://www.osti.gov/biblio/20699399}, journal = {Physical Review Letters},
issn = {0031-9007},
number = 10,
volume = 95,
place = {United States},
year = {Fri Sep 02 00:00:00 EDT 2005},
month = {Fri Sep 02 00:00:00 EDT 2005}
}