Overview
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.
Research topics
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).
Material research
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
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.
The team
Former members
Post-docs
- Sylvain MARTIN (2016-2018)
- Dhananjay TIWARI (2018-2021)
- Jérôme HURST (2019-2021)
- Lalit KANDPAL (2021-2023)
PhD
- Nuno CACOILO (2020-2024).
- Mahdi JABER (2019-2023).
- Laura ALVARO-GOMEZ (2019-2023). Co-tutella with IMDEA Madrid
- Arnaud DE RIZ (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.
Internships
- Michal DYMACEK (2023)
- Natalia BOSCOLO (2022)
- Sara BONET-GOMEZ (2021)
- Ondrej NOVOTNY (2020)
- Zied BELKHIRI (2020)
- Hoel ROBERT (2018). Joint with INAC/MEM.
Projects
Partners
- 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.
Recent news
- An exchange-spring effect delays the Walker Breakdown in vortex-state conduits (November 09th, 2026)
3D nanomagnetism is a field of rising importance, with physics arising specifically thanks to curvature and 3D magnetization distributions. Here, we report experimentally the delay of Walker breakdown for domain-wall motion, resulting from the stabilizing ... - PhD Defense – Unconventional topological spin textures in spintronics (October 30th, 2026)
On December 9th at 9:00, Coline THEVENARD (SPINTEC) will defend her PhD thesis entitled : Unconventional topological spin textures in spintronics Place : IRIG/SPINTEC, CEA Building 10.05, auditorium 445 (presential access to the conference room at ... - seminar – Tailoring Magnetic Spin Textures in La0.7Sr0.3MnO3-Based Micromagnets (October 22nd, 2026)
On November 25th, we have the pleasure to welcome in SPINTEC Yayoi Takamura from University of California, Davis (USA) ; IEEE Distinguished Lecturer. She will give us a seminar at 14:00 entitled : Tailoring Magnetic ... - Spin waves in cylindrical magnetic conduits: from theory to experiment (July 27th, 2026)
Spin waves are propagating fundamental excitations of magnetic systems, also carrying promises for low-power logic and data transfer. We report the measurement of thermal spin-wave spectra in single cylindrical nanowires, and their quantitative analysis as ... - seminar – 3D Chiral Spintronics: Spin-Selective Transport through Chiral Magnetic Nanohelices (April 13th, 2026)
On Thursday May 07th, we have the pleasure to welcome in SPINTEC Prof. Young Keun KIM from Department of Materials Science and Engineering, Korea University. He will give us a seminar at 10:30 entitled : ...
Publications
