Selected publications (2016 onwards)
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 reduced write time and the stray field. CoFeB core with a Co shell (height 8 nm; diameters 14 and 20 […]
Read moreSynthetic 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 record speeds, up to 900 m/s, in antiferromagnetic stacks. These results hold promise for the use of skyrmions to store and […]
Read moreBy 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 using soft UHV sputtering to obtain sharp interfaces. Such model system allows us to identify and quantify the spin-charge conversion […]
Read moreA 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 are based on non-relativistic physics. Real space: Magnetic and crystalline structure of Mn5Si3. Reciprocal space: shifts in the electronic bands […]
Read moreMore 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 plateform was implemented to reveal the non-hermitian topology of scalable quantum electronic circuits. It opens some new perspectives to realize […]
Read moreResistively-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 the quality of stochastic sampling, a key feature for optimum search in a complex landscape. We carry out a functional […]
Read moreDeterministic 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 power consumption required for cooling. In magnetic memories, voltage-controlled magnetic anisotropy (VCMA) is a promising approach to minimize the […]
Read moreThe 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, such as yttrium iron garnet (YIG), it is predicted that one could reach a state of superfluidity, i.e. spin transport […]
Read moreLocal 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 SPINTEC and York establish a solution for overcoming the challenge of nucleating localized real-space spin textures in AFMs, promoting the […]
Read moreIn 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 duration and, at high laser intensities, concentric ring domain structures are induced, unveiling multiple fluence thresholds. These striking switching features […]
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