Thales

Centre National De La Recherche Scientifique

Denis Crete

Bruno Marcilhac

Javier Villegas

Yves Lemaître

Laura Bégon-Lours

Juan Trastoy Quintela

Bruno Jean-Luc André Marcilhac

The invention relates to a method for manufacturing a Josephson junction comprising a step for providing a substrate, extending along a longitudinal direction, a step for depositing a superconducting layer on the substrate so that this layer extends from the substrate in a transverse direction, perpendicular to the longitudinal direction, and a step for irradiation of ions in a central area of the layer defined in the longitudinal direction, the method being characterized in that it includes, prior to the irradiation step, a step for removing a portion of the central area of the superconducting layer so as to delimit a set of areas of the superconducting layer aligned in the longitudinal direction including the central area and two lateral areas.

Process for manufacturing a Josephson junction and associated Josephson junction

This circuit () includes: an intermediate layer (), made from a conductive material and configured according to a pattern; a first electrode and a plurality of electrodes, which includes at least second and third electrodes (), each electrode including: A polarizer, made from a ferromagnetic material, placed at a particular point of the pattern of the intermediate layer, and having a magnetization; A superconducting layer, made of a superconducting material, arranged on the polarizer; and a control means () able to modify the magnetization of the polarizer of the second electrode; another control means () able to modify the magnetization of the polarizer of the third electrode; bias terminals for applying a bias signal; and, terminals for measuring an output signal, a level of the output signal being correlated with a mutual orientation of the first, second and third magnetizations.

Logic circuit based on spin valves of the spin-polarized supercurrent type and circuit integrating such logic gates

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Palaiseau, France

Denis Crete