Scientific highlights illustrated by key publications
- Thermal noise, binary phase states and how this can be used for data encryption (October 29th, 2024)
Unbiased random bitstreams are essential for encryption, secure communication, and unconventional computing, yet true randomness without bias remains challenging in hardware. By harnessing nanoscale thermal magnetization fluctuations in spintronic nano-oscillators, the AI and RF teams ... - A dipolar core-shell perpendicular shape anisotropy memory cell (July 08th, 2024)
We propose the concept of a core-shell composite structure coupled antiparallel via dipolar interaction, as the storage layer in perpendicular-shape-anisotropy magnetic random access memory (PSA MRAM). Benefits compared with a standard PSA MRAM include a ... - Synthetic antiferromagnetic skyrmions moving at record speeds (June 24th, 2024)
Magnetic skyrmions are magnetic nanobubbles which are envisioned as bits of informations in our computers. A team from the Spintec laboratory in Grenoble has demonstrated that they can be moved by electric current at ... - THz emission: a tool for studying the spintronic properties of 2D materials (June 17th, 2024)
By using THz spintronic emission, we could study the spin-charge conversion mechanisms in 2D materials. High crystalline quality 2D materials are grown by molecular beam epitaxy on large area and CoFeB is deposited on top ... - A new altermagnetic material with remarkable properties for spintronics (June 13th, 2024)
Scientists from an international consortium have demonstrated experimentally and theoretically the altermagnetic character of the material Mn5Si3, proving the incomparable advantage of this type of zero-magnetization magnetic phase: the strong spintronic effects associated with it ... - More topology in quantum electronic circuits (May 13th, 2024)
In the framework of the French-German laboratory association between SPINTEC and the IFW Dresden (CNRS International Research Project « SPINMAT »), and in collaboration with the C2N institute and the university of Würzburg, a novel ... - Resistively-coupled stochastic MTJ for energy-based optimum search (January 22nd, 2024)
We study recurrent networks of binary stochastic Magnetic Tunnel Junctions (sMTJ), aiming at efficiently solving computationally hard optimization problems. After validating a prototyping route, we investigate the impact of hybrid CMOS+MTJ building block variants on ... - Deterministic switching in Voltage Controlled Magnetic Anisotropy Magnetic at Cryogenic Temperatures (January 22nd, 2024)
Cryoelectronics has the potential to become important in high-performance computing applications and in the context of quantum computing. For low-temperature operation, it becomes imperative to reduce power dissipation, and improved device efficiency could even offset ... - The spin diode (January 22nd, 2024)
Spin electronics applies to a wide range of materials: metals, where spin is transported by electrons, but also magnetic insulators, where spin is transported by magnons. The latter are of interest because in certain insulators, ... - Local setting of spin textures in antiferromagnets (December 11th, 2023)
The setting of spin textures in antiferromagnets (AFMs) provides a potential route to antiferromagnetic spintronic devices with non-collinear spin states such as skyrmions, bubbles and domain walls. In this work, a consortium of physicists from ... - In plane reorientation induced single laser pulse magnetization reversal (October 27th, 2023)
We demonstrate that single pulse all optical helicity independent switching can be generalized for a large range of rare earth–transition metal multilayers. The threshold fluence for switching is observed to be independent of the pulse ... - Spiking neuron based on magnetic tunnel junction with dual free layer (October 27th, 2023)
We demonstrate that a perpendicular magnetic tunnel junction (MTJ) is capable of emulating an artificial spiked neuron. The magnetic stack has been designed so that the MTJ has two free layers, whose magnetization can be ... - A high gain flux concentrator greatly amplifies the sensitivity of a magnetic field sensor (October 16th, 2023)
The large magnetometers currently used onboard satellites for space exploration cannot be installed in the tiny nanosatellites (cubesat) that are envisioned for multipoint measurements. As a first step towards the realization of a miniature space ... - SpinDrop: Dropout Based Bayesian Binary Neural Networks with STT-MRAM (October 16th, 2023)
Bayesian NN (BayNN) using Dropout-based approximation provides a systematic approach for estimating the uncertainty of predictions. Despite such merit, they are not suitable for implementation in an embedded device and in most cases cannot meet ... - Epitaxial van der Waals heterostructures of Cr2Te3 on 2D material (August 01st, 2023)
For the future integration of 2D materials in spintronic devices (sensors, memories…), the ability to grow van der Waals (vdW) heterostructures combining 2D magnets, high mobility, high spin-orbit coupling (SOC) or topological materials on large ...
