Magnetic Detection of Currents in an Electrolytic Cell Using High- $T_{\rm C}$ SQUID

A magneto-electrical cyclic voltammetry has been proposed and developed. This measurement method utilized three electrodes: a counter, a working, and a reference electrode, as the conventional voltammetry uses and the magnetic field by the currents were detected. Thus, the current distribution in the electrolyte cells during the voltammetry measurements could be visualized. In this work, the current in the cell was observed during the pulse voltammetry using the high-T_C SQUID with the normal pick-up coils. The pick-up coil was aligned parallel to the surface of the cell. Obtained magnetic signals could be related to the current measured by the conventional method.