HOT-ELECTRON TUNABLE SUPERCURRENT

A Josephson junction has been realized in which the supercurrent flow is regulated by a ''normal'' control current traversing the normal met al in between the superconducting electrodes. The principle of operati on of the devices is based on the existing relation between the magnit ude of the supercurrent and the electronic distribution function in th e junction. This method for controlling the supercurrent has clear adv antages over other known methods and is relevant for superconducting e lectronics applications. (C) 1998 American Institute of Physics.