We are interested in novel spin textures, especially those occurring in three-dimensional (3D) magnetic objects. Curvature, domain walls, 3D spin and space, topology are some of our daily words at work. We design and fabricate devices, image their spin textures and influence these with spin-polarized currents or externally applied magnetic fields. The applied background includes the proposed concept of 3D race-track memory. This research topic is driven in close collaboration with colleagues in the Theory group, PFNC at Minatec, Institut Néel, and expert chemist groups in Germany and Spain.
Spin textures by models
We investigate the existence, energetics and dynamics of 3D spin textures under magnetic field and spin-polarized current by using and developing our home-made feeLLGood micromagnetic code, combined with analytical modeling.
Spin textures by experiments
From nanowires to multilayered nanotubes, we observe samples compliant for spintronic devices. Probing the strength of a spin texture’s topological protection against transformation or annihilation is a major goal. We also contribute to the development of 3D MRAM (MRAM team).
We design and synthesize samples to stabilize 3D spin textures using bottom-up chemical synthesis (anodization, electroplating, electroless deposition, atomic layer deposition). We further use lithography/FIB for electrical contacting and design specific sample supports for original in-situ experiments.
Magnetic imaging of 3D spin textures requires high spatial resolution (nanoscale) as well as bulk/surface and multi-component sensitivity. We are developing expertise in electron-, X-ray & near-field probes, both in the lab and at external facilities, including development of instruments and image data treatment.
- Sylvain MARTIN (2016-2018)
- Dhananjay TIWARO (2018-2021)
- Jérôme HURST (2019-2021)
- Arnaud DERIZ (2017-2021).
- Michael SCHÖBITZ (2017-2021). Joint with Institut NEEL.
- Michal STANO (2014-2017), Joint with Institut NEEL.
- Beatrix TRAPP (2015-2018). Joint with Institut NEEL.
- Alexis WARTELLE (2013-2017). Joint with Institut NEEL.
- Sara BONET-GOMEZ (2021)
- Ondrej NOVOTNY (2020)
- Zied BELKHIRI (2020)
- Hoel ROBERT (2018). Joint with INAC/MEM.
- Institut NEEL, Grenoble, France.
- PFNC @ Minatec, Grenoble, France.
- J. Bachmann. Department of Chemistry, FAU Erlangen-Nürnberg, Germany.
- W. Ensinger. Materialanalytik – TU Darmstadt, Germany.
- Microscopy group (I3EM), CEMES, Toulouse, France.
- L. Perez, IMDEA, Madrid, Spain.
- M. Vazquez, GNMP-CSIC, Madrid, Spain.
- M. Foerster, L. Aballe, ALBA synchrotron, Barcelona, Spain.
- S. Finizio, J. Raabe, SLS Synchrotron, Villigen, Switzerland.
- R. Belkhou, SOLEIL Synchrotron, Orsay, France.
- A. Lubk, D. Wolf, IFW, Dresden, Germany.
- J. M. de Teresa, INA, Zaragoza, Spain.
- A. Fernandez-Pacheco, The Cavendish Laboratory, Cambridge, UK.
- C. Phatak, Argonne National Lab., Chicago, USA.
- 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 ...
- [POSITION FILLED] 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 ...