Suferfast is an ANR project, with title Exploiting specificities of d-wave superconductivity for ultrafast dynamic coupling with magnetism (ANR-22-CE30-0020-01). SUPERFAST aims at demonstrating novel spin transport and ultrafast dynamics coupling effects in heterostructures combining magnetic materials and unconventional superconductors (S). The pursued ideas have much interest within condensed-matter physics and in the nascent field of […]

MAROT stands for Low noise MAgnetometeR based On Tunnel junctions. It is a 42-months long ANR project (ANR-22-CE42-0020). The current boom in nanosatellites, which are revolutionizing space exploration, calls for the development of suitable miniature instruments. In particular, the extremely high-performance magnetometers used to date on-board satellite, such as search-coils or flux-gates, are heavy and […]

  Spin-torque-nanodiodes based on magnetic tunnel junctions are promising candidates for RF energy harvesters and ultra-low power wake-up receivers with performances that are expected to surpass those of semiconductor diodes. Experiments on magnetic tunnel junctions with perpendicular magnetic anisotropy show how the performances can be optimized upon reducing the magnetic layer thickness and the device […]

  We have investigated the use of spintronic devices to enable the implementation of a Binary Ensemble Convolutional Neural Network. A simulation flow has been setup and allowed to evaluate this disruptive combination and very promising results have been obtained in terms of hardware optimization and power reduction. The use of emerging technologies has been […]

  Control over spin transport in antiferromagnetic systems is essential for future spintronic applications with operational speeds extending to ultrafast time scales. A consortium of physicists at SPINTEC, JGU Berlin and Charles University Prague established the essential role of interfaces for spin current injection and spin current-to-charge current conversion, from the gigahertz (GHz) diffusive to […]

Magnetic skyrmions are appealing for use in logic and memory devices combining small size and fast motion. Here, we propose to exploit skyrmion interactions to perform both logic and memory operations at the nanoscale. Our concept opens a path for novel devices which intrinsically merge high-density non-volatile data storage with computing capabilities. a. Schematic representation […]

Y. Fu, J. Li, J. Papin, P. Noël, S. Teresi, M. Cosset-Chéneau, C. Grezes, T. Guillet, C. Thomas, Y.-M. Niquet, P. Ballet, T. Meunier, J.-P. Attané, A. Fert, and L. Vila, Nano Lett. 22, 7867 (2022).   We report the observation of this bilinear magnetoresistance (BMR) in strained HgTe, a prototypical TI. We show that […]

Context: CEA has recently committed to an ambitious, long-term, EU-driven research project focused on materials innovation in order to implement green and digital transitions in a sustainable way and inclusive for society. The accelerated development of 2D materials answers the need for innovative spintronics with controlled amounts of materials. An essential aspect is getting closer […]

Magnetic skyrmions are localized chiral spin textures, which offer great promise to store and process information at the nanoscale. The unique sense of rotation of their surrounding domain wall, called chirality, is resulting from the so-called Dzyaloshinskii−Moriya Interaction. C.E. Fillion et al. have managed the inversion of the skyrmion chirality by applying a gate voltage, […]

Skyrmions in synthetic antiferromagnets are appealing for use in future memory and computing devices, combining small size and fast motion, but creating, stabilizing, and observing them remains a challenge. Here, we demonstrate the stabilization and current and light induced nucleation of skyrmions in a synthetic antiferromagnet, observing the magnetization texture in each layer using X-ray […]