Effect of Friedel Oscillations on the Work Function of Ytterbium Nanofilms

The effect of standing waves charge density (Friedel oscillations) generated by an interface the metallic ytterbium nanofilm single-crystal silicon substrate type on work function nanolayers has been studied. It is shown that in range thicknesses from 0 to 8 monatomic layers, oscillating character. This feature dependence thickness a consequence fact change nonmonotonically power (momentum) electric double layer, which exists metal surface and affects metal. ultimately determines nature nanofilms. Keywords: surface, nanofilm, function, Friedel oscillations, ytterbium.