2D materials and van der Waals (vdW) heterostructures are promising candidates to build efficient THz spintronic emitters. Here, we demonstrate the drastic modification of THz spintronic emission by inserting a single layer of MoSe2 in the PtSe2/graphene vdW heterostructure. Ab initio calculations indeed show the emergence of Rashba states due to the electronic hybridization between […]

Time-resolved magnetic helicoidal dichroism (MHD) was successfully used to assess the ultra-fast dynamics of magnetization. This first attempt to use an MHD-based technique was demonstrated on a magnetic vortex structure hosted by a permalloy pacman micropillar (diameter~15nm, thickness~80nm). Micromagnetic simulations allowed to link the features identified in the MHD signal to a process of regeneration […]

On Monday December 2, 2025 we have the pleasure to welcome Egor KISELEV from Max Planck Institute for the Physics of Complex Systems (Germany). He will give a seminar at 11:00 entitled: Dynamics of orbital angular momentum in confined geometries and the control of THz magnons in antiferromagnets Place : IRIG/SPINTEC, auditorium 445 CEA Building […]

Superparamagnetic tunnel junctions have emerged as promising stochastic neurons for low-energy cognitive computing. We report, for the first time, nanosecond-scale mean waiting times between magnetization reversals in perpendicularly magnetized tunnel junctions, enabled by a strong entropic contribution to the thermally activated switching dynamics.   Magnetic tunnel junctions (MTJs) consist of a free and a fixed […]

Topology is a powerful tool for categorizing magnetization textures by defining a topological index in both two-dimensional (2D) systems, such as thin films or curved surfaces, and in 3D bulk systems. In the emerging field of 3D nanomagnetism, both volume and surface topological numbers must be considered, requiring the identification of a proper global topological […]

On Monday June 30, 2025 at 14:00 Sergey A. NIKOLAEV from Osaka University (Japan) will give online seminar entitled: Symmetry aspects of antiferromagnets and altermagnets Video conference: https://univ-grenoble-alpes-fr.zoom.us/j/98769867024 Meeting ID: 987 6986 7024 Passcode: 025918 Abstract: Antiferromagnets being an abundant class of magnetic systems now lie at the core of the research in spintronics, and […]

On Tuesday April 01th, at 9:00, Mateo Ibarra Gomez (SPINTEC) will defend his PhD thesis entitled : Phase dynamics of injection locked spin-torque nano-oscillators: from synchronization to Ising machines Place : IRIG/SPINTEC, CEA Building 10.05, auditorium 445 (presential access to the conference room at CEA in Grenoble requires an entry authorization, request it before March […]

The emergence of a large helical orbital texture due to the formation of the surface states at the metallic Co/Al interfaces originating from the orbital Edelstein effect and giving rise to a nonequilibrium orbital accumulation is revealed to produce large current-induced torques, providing an essential theoretical background for the experimental observations. Spin-orbit coupling is found […]

By performing transport simulations on carefully derived Wannier tight-binding models, Janus chromium-based transition-metal dichalcogenide (TMD) monolayers are found to exhibit a spin-orbit torque (SOT) performance comparable to the most efficient two-dimensional materials, while additionally allowing for field-free perpendicular magnetization switching, due to their reduced in-plane symmetry.   The spin–orbit torque (SOT) mechanism represents an innovative […]

On Wednesday, November 13th 2024, we have the pleasure to welcome in SPINTEC Irinel Chiorescu from Florida State University. He will give us a seminar at 11:00 entitled : Engineering quantum coherence and control in diluted spin systems Place : IRIG/SPINTEC, auditorium 445 CEA Building 10.05 (presential access to the conference room at CEA in […]