DUAL ELECTRICAL-PROPERTIES OF QUENCH-CONDENSED MERCURY FILMS - DEPENDENCE ON THE SUBSTRATE MATERIAL

It is shown that the conductivity onset in cold deposited Hg films on glass substrates covered with a SiO layer corresponds to te film thick ness of 4-5 Angstrom in a contrast to films deposited on pure glass, w here the conductivity onset can be observed only at 10-15 times higher thicknesses. Study of super-corducting properties of films is also pr esented. We believe that chemical bonds between metallic atoms themsel ves and their chemical interaction with atoms of the substrate are ver y important for formation of the film structure and responsible for a completely different behavior of films deposited onto different substr ates.