Description du projet
Une nouvelle plateforme pour le mouvement des skyrmions basée sur des nanodispositifs 3D
Les skyrmions sont des structures magnétiques stables et mobiles dotées d’une torsion topologique, ce qui les rend attrayants pour le stockage et le traitement de données à faible énergie et à haute densité, un défi majeur de la technologie moderne. Cependant, leurs mouvements sous l’effet de stimuli de courant et de température sont complexes et difficiles à manipuler, et leur détection électrique est un défi. Le projet 3D-Sky, financé par le programme Actions Marie Skłodowska-Curie, utilisera la nanofabrication 3D pour créer une nouvelle plateforme permettant de contrôler les effets thermiques et d’étudier le paysage énergétique régissant la dynamique des skyrmions.
Objectif
The overall power consumption of information technology accounts for almost 10% of the global energy demands and it is predicted to reach 20% in 2030. As a result, we need new ways to store and compute data utilizing more efficient and environmentally cleaner alternatives to current technologies, and the EU should be leading this transformation. The development of a low-power non-volatile memory is one of the most sought-after technologies and racetrack memories based on topological magnetic Skyrmions are one of the most promising candidates. There are, however, several drawbacks for spintronic devices based on Skyrmions: their trajectories under currents are nontrivial; the thermal contribution to Skyrmion motion is yet to be well understood, and fully electrical detection of Skyrmions is challenging due to the small contribution of the topology to the Hall effect.
In 3D-Sky, I propose to take advantage of state-of-the-art 3D nanopatterning to obtain fine control over the energy landscape for the motion of Skyrmions in 3D racetracks. For this, I will exploit the precise and unique tuning of thermal and geometrical properties that 3D devices enable to decouple the nanostructure from the substrate opening the possibility to use much higher temperature gradients to tackle the main drawbacks of Skyrmion racetrack memories. In short, in 3D-Sky I aim to create a platform for Skyrmion motion based on 3D nanodevices focusing on the impact of temperature on their dynamics, nucleation and properties. This will provide the fundamental knowledge needed to understand thermal-driven Skyrmion motion in different systems including the different driving forces in play. Furthermore, I will tackle the current challenges in reliable nucleation and electrical detection of Skyrmions taking advantage of the singular properties of 3D nanostructures for the creation of defects and efficient heating.
Champ scientifique
Programme(s)
- HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA) Main Programme
Régime de financement
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European FellowshipsCoordinateur
28006 Madrid
Espagne