Thales

Centre National De La Recherche Scientifique

Université Paris-sud 11

Université Paris—sud

Université Paris-saclay

Bruno Marcilhac

Vincent Cros

Paolo Bortolotti

Jean-Claude Mage

Julien Kermorvant

Julie Grollier

Nicolas Locatelli

Javier Villegas

Denis Crete

Yves Lemaître

Abdelmadjid Anane

Pierre Seneor

Romain Lebrun

Alexey Vasilyevich Khvalkovskiy

Javier E Villegas

Bruno Dlubak

Olivier D'ALLIVY Kelly

Juan Trastoy Quintela

Disclosed is a method for generating, from a first electric current having a first frequency, a plurality of second currents each having a second respective frequency component, the method including the following steps: supplying a frequency distributor including a first set of pillars including a layer made from a first magnetic material and having a resonance frequency; exciting each pillar of the first set with an electromagnetic field having the first frequency, the ratio between twice the resonance frequency of each pillar of the first set and the first frequency being equal, to within ten percent, to a first natural integer; and generating, by each pillar of the first set, a second frequency component in the second respective current.

Method for generating a plurality of currents each having a frequency

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

A spectrum analyzer for a signal Icomprising a plurality of frequencies fcomprises N entities each made up of a structure formed by a stack of magnetic and non-magnetic layers having in at least one of the magnetic layers a magnetic configuration in the shape of a vortex, the excitation modes of the magnetic configuration being suitable for detecting the frequencies contained in an incident signal in real time, each entity having a first lower electrode and a second upper electrode, a voltage-measuring device suitable for measuring an electric voltage showing the presence of a frequency fin the analyzed signal I, the device being connected to the lower electrode and to the upper electrode, a measurement-processing device suitable for determining the value of the frequencies fin the signal I, and a line carrying the signal to be analyzed to each of the entities.

Analog spectrum analyzer

An oscillator is provided including a nanopillar and current injector for injecting a power supply current through the nanopillar, the nanopillar including at least one pattern including first and second layers made from a ferromagnetic material separated from each other by an intermediate layer made from a non-magnetic material. Each of the first and second ferromagnetic layers is prepared such that its remanent magnetic configuration corresponds to a vortex configuration and the polarity of the vortex core of the first layer is opposite the polarity of the vortex core of the second layer. The intermediate layer can allow repellant magnetic coupling between the two vortices of the first and second layers, for a zero intensity of the power supply current and a zero amplitude of the outside magnetic field.

Spintronic oscillator, and use thereof in radiofrequency devices

Growing community of inventors

Palaiseau, France

Bruno Marcilhac