  Sub-monolayer physical layer deposition of Zn on Ag(111) substrate at room
temperature is investigated using Auger electron spectroscopy, low energy
electron diffraction and scanning tunneling microscopy. We identified an
original Zn highly-anisotropic structure in the shape of finger-like inserted
dendrite in front of Zn monolayer growth. On the basis of STM observations, a
mechanism of inserted dendritic growth and a mechanism of its transition to
layered growth are proposed.
