On the Polarization of Silver Sulfide

抄録

The variation of the chemical potential of electrons in Ag₂S with the variation of the Ag/S ratio was measured with the help of the e.m.f. measurements of the galvanic cell Ag|AgI|Ag₂S|Pt. The relation between the chemical potential of electrons and the density of conduction electrons was found to be in accordance with the theory, and it was found that the conduction electrons in β–Ag₂S obey the classical statistics while those in α-Ag₂S are degenerate. Polarization phenomena when weak direct current of constant intensity is sent through Ag₂S specimen were also studied. The potential distributions along the specimen and the time rate of building up or decay of polarization show good agreement with the theory in both α- and β-phases. The conductivities were measured and discussed.