HELICAL CURRENT FLOW AT THE JUNCTION BETWEEN 2 TILTED ANISOTROPIC CONDUCTORS

We consider the current flow near the junction between two tilted anis otropic conductors resulting from an electric field parallel to the ju nction, in the situation where the anisotropy is so severe that conduc tion away from the junction is poor. We show that current flows along the junction in helical paths and calculate the effective conductivity of the junction per unit length, the form of the current flow, and it s spatial extent. The helical current path provides inductance, which is calculated, and the magnetic field components resulting from the cu rrent now are estimated. The structure also acts as a localized detect or of time dependent magnetic flux.