We are interested in novel spin textures, especially those occurring in magnetic nanowires and nanotubes. In these, specific effects are made possible by curvature, three-dimensional spin and space, and topology with azimuthal periodic boundary conditions. We design and fabricate the systems, image the spin textures, and ultimately aim at addressing these with spin-polarized currents. The applied background includes the proposed concept of 3D race-track memory. This research topic is conducted in close collaboration with colleagues in the Theory group, at Institut Néel, and expert chemist groups in Germany.
Physics of spin textures
We aim at investigating the existence and dynamics of motion of 3D spin textures under magnetic field or spin-polarized current. While nanowires have been the initial focus, we are now also developing multilayered nanotubes for their higher versatility for spintronic purposes. Checking the strength of topological protection against their transformation or annihilation is a major goal. We combine material synthesis, experimental investigations, and micromagnetic modelling.
Special samples need to be designed and synthesized to stabilize 3D spin textures, mostly based on bottom-up chemical synthesis: anodization, electroplating, electroless deposition, atomic layer deposition.
Advanced magnetic imaging
Magnetic imaging 3D spin textures is demanding in terms of spatial resolution, bulk/surface and multi-components sensitivity. We are developing expertise in various techniques both in the lab and at external facilities.
- Michael SCHÖBITZ (2018-2021). Joint with Institut NEEL.
- M3d, FP7 (2012-2016).
- Institut NEEL, Grenoble, France.
- J. Juraszek, GPM, Rouen.
- Prof. J. Bachmann. Department of Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany.
- Prof. W. Ensinger. Materialanalytik – Technische Universität Darmstadt, Germany.
- A.Masseboeuf, C. Gatel, CEMES, Toulouse, France.
- Prof. M. Vazquez, Group of Nanomagnetism and Magnetization Processes, CSIC-Madrid, Spain.
- Prof. K. Nielsch, IFW Dresden, Germany.
- J. M. de Teresa, Univ Zaragoza, Spain.
- A. Fernandez-Pacheco, The Cavendish Laboratory, Department of Physics, Cambridge, UK.
- Seminar – Skyrmions and antiskyrmions under spin-orbit torques: Effects of disorder, trochoidal motion, and skyrmiogenesis (January 21st, 2019)
On January 30, we have the pleasure to welcome Joo-Von Kim from Centre de Nanosciences et de Nanotechnologies, Université Paris-Saclay, 91120 Palaiseau, France. He will give us a seminar at 11:00, CEA/Spintec, Bat. 1005, room ...
- Electroless plating to produce flux-closure nanotube for three-dimensional spintronics building blocks (December 18th, 2018)
The conceptual proposal for a so-called race-track three-dimensional data storage device based on domain walls in a dense array of vertical wires, revived the attention on cylindrical magnetic nanostructures. While mostly nanowires have been considered ...
- 30 months post-doc position – Magnetic and electric characterization of core-shell nanotubes for 3D spintronics (December 14th, 2018)
Spintronics has become a mature technology for applications, such as magnetic field sensing and solid-state memories. However, existing concepts are almost exclusively based on planar processes such as thin film deposition and patterning. Extending spintronics ...
- C3DS – An ANR-DFG project (December 09th, 2018)
C3DS stands for Chemistry for three-dimensional Spintronics, and is a 36-month ANR-DFG project (2019-2022). Spintronics has become a mature technology for applications, such as magnetic field sensing and solid-state memories. However, it is almost exclusively ...
- PhD position [POSITION FILLED] – TEM magnetic imaging of ferromagnetic nanotubes for 3D spintronics (October 29th, 2018)
THIS POSITION HAS BEEN FILLED Keywords: 3D spintronics, magnetic nanotube, magnetic domain wall, curvature, electron holography, magnetic imaging, core-shell Topic Three-dimensional spintronics is a fast emerging topic . On the fundamental side this opens pathways for novel spin ...
Former team members
- Sylvain MARTIN (2016-2018)
- Chloé BOUARD (2015-2018)
- Beatrix TRAPP (2015-2018). Joint with Institut NEEL.
- Alexis WARTELLE (2013-2017). Joint with Institut NEEL.
- Hoel ROBERT (2018). Joint with INAC/MEM.