The wetting of thin Ag films on Cu(111) is characterized in detail with angle-resolved photoelectron spectroscopy. After constructing disordered Ag films on Cu(111), we monitored the evolution of their layer-resolved Shockley states during wetting. Our results provide the first observation of a transitional state, which implies a coexistence of clean Cu(111), 1 ML of Ag on Cu(111), and 2 ML of Ag on Cu(111). The evolution of these Shockley states indicates a two-process model of wetting.
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|State||Published - 31 Aug 2010|