Abstract
We present the first resonant x-ray reflectivity measurements from a liquid surface. The surface structure of the liquid Hg-Au alloy system just beyond the solubility limit of 0.14at% Au in Hg had previously been shown to exhibit a unique surface phase characterized by a low-density surface region with a complicated temperature dependence. In this paper we present reflectivity measurements near the Au LIII edge, for 0.2at% Au in Hg at room temperature. The data are consistent with a concentration of Au in the surface region that can be no larger than about 30at%. These results rule out previous suggestions that pure Au layers segregate at the alloy surface.
Original language | English |
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Pages (from-to) | 183-188 |
Number of pages | 6 |
Journal | Materials Research Society Symposium - Proceedings |
Volume | 590 |
State | Published - 2000 |
Externally published | Yes |
Event | The 1999 MRS Fall Meeting - Symposium R 'Applications of Synchrotron Radiation Techniques to Materials Science V' - Boston, MA, USA Duration: 29 Nov 1999 → 3 Dec 1999 |