The Knowledge Factory - Sur le même thème https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/controlling-the-chirality-of-skyrmions-by-a-gate-voltage.aspx DRF english version en-US https://www.cea.fr/_layouts/15/images/i2i/icon-144x144-1033.png The Knowledge Factory - Sur le même thème https://www.cea.fr/drf/english Record coherence time for a hole spin in natural silicon https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/record-coherence-time-for-a-hole-spin-in-natural-silicon.aspx Researchers at the CEA-Irig have demonstrated that there is an optimal configuration for bringing the coherence times of hole spins closer to those of electron spins. Spintronics ; Quantum Physics ; Micro-nanotechnologies general public ; Journalists ; Researchers Découvertes et avancées ; Scientific result Thu, 22 Sep 2022 10:00:00 GMT Controlling the chirality of skyrmions by a gate voltage https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/controlling-the-chirality-of-skyrmions-by-a-gate-voltage.aspx Researchers at Irig and their partners have demonstrated for the first time that it is possible, through the simple application of a gate voltage, to change the winding direction of magnetization “nano-vortices” (skyrmions), and thus to individually control the direction of their motion. This breakthrough opens up new possibilities for research in information processing (multiplexing, etc.). Spintronics general public ; Journalists ; Researchers IRIG Découvertes et avancées ; Scientific result Thu, 15 Sep 2022 10:00:00 GMT Developing an identity card for each quantum bit on silicon https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/developing-an-identity-card-for-each-quantum-bit-on-silicon.aspx Using a “pump-probe” spectroscopic technique, researchers at the CEA-Irig have succeeded in creating an authentic identity map of individual quantum bits, based on the spin of holes in silicon. This is an essential task that can easily be extrapolated to high qubit densities! Spintronics ; Micro-nanoelectronics ; Quantum Physics general public ; Journalists ; Researchers IRIG Découvertes et avancées ; Scientific result Tue, 18 Jan 2022 11:00:00 GMT Detecting spins with a single photon counter https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/detecting-spins-with-a-single-photon-counter.aspx According to researchers from the CEA-Iramis, it is now possible to detect spins thanks to an original method using a single photon sensor that is insensitive to noise. This is a major step forward for the measurement of spin quantum bits or their conversion into photons. Quantum Physics ; Spintronics general public ; Journalists ; Researchers Iramis Découvertes et avancées ; Scientific result Fri, 17 Dec 2021 11:00:00 GMT Quantum physics: a record coherence time for erbium spins https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/quantum-physics-a-record-coherence-time-for-erbium-spins.aspx Researchers from CEA-Iramis have demonstrated that, contrary to what is generally believed, the electronic spin carried by erbium can have a long coherence time. This makes it a good candidate for relaying quantum information via photons. Quantum Physics ; Spintronics general public ; Journalists ; Researchers Iramis Découvertes et avancées ; Scientific result Fri, 17 Dec 2021 11:00:00 GMT Spintronics: Spin absorption now better understood https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/spintronics--spin-absorption-now-better-understood.aspx Thanks to an original experimental setup, scientists from CEA-IRIG clarified for the first time how the response of a spin current to the perturbation brought by a ferromagnetic material depends on the orientation of the majority spin with respect to the magnetization of the material. A fundamental point for understanding spin transport in spintronic components! Spintronics ; Micro-nanotechnologies general public ; Journalists ; Researchers IRIG Découvertes et avancées ; Scientific result Fri, 09 Apr 2021 10:00:00 GMT Spintronics: a breakthrough in nano-oscillators for the analysis of microwave signals https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/spintronics-a-breakthrough-in-nano-oscillators-for-the-analysis-of-microwave-signals.aspx Researchers at the CEA-Irig and their partners have provided the first demonstration of the potential of “spin-torque nano-oscillators” for use in microwave spectrum analyzers. These ultrafast devices with their nanosecond-scale resolution are proving to perform very well. Spintronics ; Micro-nanotechnologies ; Radio frequency ; Communications general public ; Journalists ; Researchers IRIG Scientific result Thu, 14 Jan 2021 11:00:00 GMT New two-dimensional materials for skyrmions https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/new-two-dimensional-materials-for-skyrmions.aspx Researchers from the CEA-Irig and their partners in France and China are proposing a new family of asymmetric, two-dimensional materials that could produce magnetic skyrmions. These “nano-whirlpools” of magnetization hold promise for next-generation magnetic memories. Spintronics ; Micro-nanotechnologies ; Quantum Physics general public ; Journalists ; Researchers IRIG Scientific result Thu, 17 Dec 2020 11:00:00 GMT Nanometer scale skyrmions at room temperature and zero magnetic field https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/nanometer-scale-skyrmions-at-room-temperature-and-zero-magnetic-field-.aspx Researchers at the CEA-Irig are proposing new magnetic structures that allow the stabilization of nanoscale “skyrmions” without the application of any external magnetic field. This represents another step towards new applications for storing and processing information. Spintronics ; Micro-nanotechnologies general public ; Researchers ; Journalists IRIG Scientific result Fri, 04 Dec 2020 11:00:00 GMT European SpinTronicFactory network publishes spintronics road map https://www.cea.fr/drf/english/Pages/News/Institutional-news/2020/european-spintronicfactory-network-publishes-spintronics-road-map.aspx On August 19, 2020, the European consortium SpinTronicFactory, led by the French laboratories[1] Spintec (CEA, CNRS, Université Grenoble Alpes) and Thales-CNRS Joint Unit (Palaiseau), published an ambitious spintronics road map in Nature Electronics. The field, at the frontier between magnetism and microelectronics, is coming of age, and offers wide possibilities for innovation. Spintronics ; New technologies ; Micro-nanoelectronics general public ; Journalists ; Researchers IRIG Europe Wed, 09 Sep 2020 10:00:00 GMT Cooling electron spins with microwave photons https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/cooling-electron-spins-with-microwave-photons.aspx A team from the CEA-Iramis has shown that it is possible to bring an ensemble of electron spins to a temperature lower than that of the supporting crystal, thanks to their being coupled to an electromagnetic field within a resonant microwave cavity. This patented discovery greatly improves the detection of EPR (Electron Paramagnetic Resonance) and NMR (Nuclear Magnetic Resonance) signals. Spintronics ; Quantum Physics general public ; Journalists ; Researchers Iramis Scientific result Mon, 15 Jun 2020 10:00:00 GMT Controlling and detecting spin currents using ferroelectricity https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/controlling-and-detecting-spin-currents-using-ferroelectricity.aspx Researchers from the CEA-Irig and the “Unité mixte de physique” CNRS-Thales have proposed a new spintronic approach based on ferroelectricity. For the first time, this approach allows spin currents to be manipulated using non-magnetic interfaces controlled by electric fields. The result: the electrical consumption of non-volatile spintronic devices can potentially be reduced by a factor of one thousand! Spintronics ; Micro-nanotechnologies general public ; Journalists ; Researchers IRIG Scientific result Wed, 22 Apr 2020 10:00:00 GMT A little bit of disorder in spin ice https://www.cea.fr/drf/english/Pages/News/Scientific-results/2018/A-little-bit-of-disorder-in-spin-ice.aspx “Spin ice” refers to a ferromagnetic material at low temperature exhibiting a promising quantum behavior. Using neutron scattering experiments and theoretical models, a collaboration involving the Iramis has just established how a tiny chemical disorder in this material can reveal a spectrum of magnetic fluctuations. This is a fundamental step in realizing and controlling the properties of a quantum spin ice. Spintronics ; Materials Researchers ; general public ; Journalists Iramis Scientific result Tue, 27 Mar 2018 10:00:00 GMT “Lateral” geometries, or spintronics 2.0 https://www.cea.fr/drf/english/Pages/News/Scientific-results/2018/Lateral-geometries-or-spintronics-2.0.aspx Thanks to progress in lithography techniques, new so-called “lateral” architectures are emerging in spintronics. Far more versatile and just as powerful as the current devices, they are opening up important prospects for memory and logic applications. It’s time to get creative! Spintronics Researchers ; general public ; Journalists Inac Scientific result Thu, 15 Feb 2018 11:00:00 GMT A boost for magnetic tunnel junctions! https://www.cea.fr/drf/english/Pages/News/Scientific-results/2018/A-boost-for-magnetic-tunnel-junctions.aspx Les propriétés magnétiques et électriques des jonctions tunnel magnétiques ont pu être améliorées significativement en insérant des couches de métal réfractaire (tungstène) dans les empilements. Cette avancée ouvre de belles perspectives aux mémoires magnétiques MRAM composées de telles jonctions et qui rentrent en production de volume. Spintronics Researchers ; general public ; Journalists Inac Scientific result Mon, 05 Feb 2018 11:00:00 GMT Spice : Heralding in Universal Memory https://www.cea.fr/drf/english/Pages/News/Institutional-news/2018/Spice-Heralding-in-Universal-Memory.aspx Using optical rather than electrical technology to write to MRAM magnetic storage media would unlock a thousandfold speed increase and slash power consumption by a factor of 100. Spice aims to tackle this challenge and promote the use of non-volatile memory near processor cores. A computing revolution in perspective... Cross-functional disciplines ; Computing ; Electronics ; Spintronics ; Micro-nanotechnologies Journalists ; general public ; Researchers Grenoble News ; Newsletter ; CEA Research News ; European & international partnerships magnetization;tunnel-junction;optomagnetism;MRAM;H2020;excellent science; Fri, 02 Feb 2018 17:00:00 GMT A skyrmion switch https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/a-skyrmion-switch.aspx “Magnetic skyrmions” are currently emerging as promising nanoscale bits in spintronics, e.g. for dense, energy-efficient information storage or high-performance logical operations. Researchers from the Inac and the Institut Néel in Grenoble have managed to create and erase microscale skyrmions using an electric field. Spintronics Researchers ; general public ; Journalists Inac Scientific result Thu, 16 Nov 2017 11:00:00 GMT Large Spin Accumulations in Bulk Germanium by Spin-Hall Voltage https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/large-spin-accumulations-in-bulk-germanium-by-spin-hall-voltage.aspx Researchers from INAC have managed to accumulate high spin densities in germanium over long distances. This result opens prospects for the production of a multi-terminal spintronic device where different spin voltages can be used as inputs for magneto-logic gates on germanium. Spintronics Researchers ; general public ; Journalists Inac Scientific result Tue, 19 Sep 2017 10:00:00 GMT How to Produce Unidirectional Spin Waves https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/how-to-produce-unidirectional-spin-waves.aspx Researchers from INAC have modeled spin wave sources using base metals. They showed that the presence of the interaction called Dzyaloshinskii-Moriya in these materials, combined with a judicious choice of system geometry, allows for the obtaining of a spin wave source that is unidirectional. Spintronics ; New technologies Researchers ; general public ; Journalists Inac Scientific result spin;spintronique;source unidirectionnelle d'onde de spin;ondes de spin; Tue, 06 Jun 2017 10:00:00 GMT