Adsorption of silver on (001), (011) and (111) oriented tungsten single crystals

Work function changes caused by silver adsorption were measured on (001), (011) and (111) tungsten single crystal planes using electron beam method. The decrease of the work function was observed on all planes studied in the small coverage region. The result evidences that the increase previously observed for the average work function in this coverage region can not be connected with negative dipole formation with silver atoms.