PhD: Magnon beamforming at the nanoscale

We offer at IMT Atlantique in Brest (https://www.imt-atlantique.fr/en/research-innovation/phd) a PhD position starting in the fall 2024 to study the shaping and the manipulation of spin wave beams at the nanoscale. Recent advances inspired from the concepts of optics demonstrated the focusing or diffracting of spin wave beams in continuous film with properly designed microwave antennas [3,4]. In parallel, unidirectional transmission of micron-size spin waves beam was achieved very recently using the chiral coupling between the uniform resonance of NiFe nanowires and exchange spin waves in a thin YIG film [5]. In this project, we aim at combining both ideas, and explore configurations of magnetic nanostructures coupled to a continuous thin film that can create interference pattern readily adjustable. The first part of the work entail designs and simulations aiming at identifying the most prominent assemblies of nanomagnets. The second part of the work will consist in nano-fabrication of devices and their measurement to demonstrate the feasibility of a magnon interferometer. This project is funded by the collaborative PEPR SPIN program within the project SWING (“Spin waves for advanced signal processing”), which will involve frequent collaborations with major spintronic labs in France within a large collaborative program entitled PEPR SPIN. We are looking for candidates with sharp written and oral communication skills that are used to carrying out technical tasks autonomously. Candidates should email their application directly to Dr. Vincent Vlaminck at [email protected], before July 27th 2024.