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K. Ait-Mansour, H. Brune, D. Passerone, M. Schmid, W. Xiao, P. Ruffieux, A. Buchsbaum, P. Varga, R. Fasel:
"Interface-confined mixing and buried partial dislocations for Ag bilayer on Pt(111)";
Physical Review B, 86 (2012), 0854041 - 0854045.

The trigonal strain-relief pattern formed by an Ag bilayer on Pt(111) is a prominent example for dislocation networks and their use as nanotemplates. However, its atomic structure has not been solved. Combining scanning tunneling microscopy, low-energy ion scattering, and X-ray photoelectron diffraction, we demonstrate that, unexpectedly, about 22% of the atoms exchange across the Ag/Pt interface, and that the partial dislocations defining the trigonal network are buried in the Pt interface layer. We present an embedded-atom-method simulation identifying the lowest energy structure compatible with all experimental findings.