FIELD: electricity.
SUBSTANCE: electrodes are fabricated from copper and silver, they are brought in contact with electrolyte solution, preliminary electrolysis is performed with alternation of anode oxidation and cathodic reduction of metal surface, the dependence of derivative of surface tension by the area charge density from electrode potential is registered, the named dependences obtained for copper and silver are compared, the section of step drop in the anode direction, decrease of length of steps along the potential axis are noted as their common features. The origin of steps is explained by localization of electrons of surface conductivity in a two-dimensional quantum hole that results in step dependence of density of states of these electrons from potential. The compliance between the length of steps and distance between discrete levels of energy of electrons in a double electric layer is noted. On the chart in the same range of change of potential the curve of derivative of surface tension by area density of charge and the curve of density of states of electrons in the form of step function of potential which decreases at change of potential towards more positive values and achieves zero at the potential of minimum of derivative of surface tension are compared.
EFFECT: improvement of demonstrativeness and reliability of demonstration of quantum oscillations of surface tension.
15 cl, 15 dwg
