Project Manager

Hélène Béa, Associate Professor at Université Grenoble Alpes

The ACOUSKYR project uses surface acoustic waves (SAWs) to manipulate and detect skyrmions and their lattices. It analyzes the impact of SAWs on different types of skyrmions, including their nucleation, propagation, and self-organization into periodic lattices. This project could lead to innovative applications by combining skyrmions with spintronic technologies for SAW devices, particularly in radiofrequency telecommunications.

Challenges

> Develop models and optimize the geometry and type of SAWs for efficient magnetoelastic coupling and better control of skyrmions.

> Optimize both the materials hosting the skyrmions and the nature and orientation of the piezoelectric substrate for better efficiency in the nucleation and movement of skyrmions induced by SAWs.

> Manipulate the skyrmions and arrange them into lattices using SAWs.

> Explore the coupling between the resonant modes of skyrmions and SAWs in skyrmion lattices and use it to detect these skyrmion lattices.

Positioning the Project with the PEPR

The ACOUSKYR project fosters collaborations between the CHIREX and SWING projects by combining expertise on materials for skyrmions (CHIREX) and SAWs and dynamic measurements (SWING). It also paves the way for new inter-team collaborations within the spintronics community, thereby strengthening the structuring of the French spintronics community.