SPIN TEXTURES

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 TIWARO (2018-2021)
  • Jérôme HURST (2019-2021)

PhD

  • 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

  • M3d, FP7 (2012-2016).
  • MILF, ANR (2019-2022).
  • C3DS, ANR-DFG (2019-2022).

Partners

Recent news

  • Seminar – Reservoir Computing with Random Magnetic Textures (November 13th, 2019)Seminar - Reservoir Computing with Random Magnetic Textures
    On November 20th at 11:00, we have the pleasure to welcome Daniele Pinna from Johannes Gutenberg University. He will give us a seminar at CEA/SPINTEC (*) Bat 1005, room 445, entitled : Reservoir Computing with Random ...
  • Seminar – Chirality in thin films and multilayers probed by Soft x-ray (coherent) scattering (November 06th, 2019)Seminar - Chirality in thin films and multilayers probed by Soft x-ray (coherent) scattering
    On December 2th at 11:00, we have the pleasure to welcome Nicolas Jaouen from SEXTANTS beamline, Synchrotron SOLEIL. He will give us a seminar at CEA/SPINTEC (*) Bat 1005, room 445, entitled : Chirality in thin ...
  • Masters thesis projects for Spring 2020 (September 30th, 2019)Masters thesis projects for Spring 2020
    You find here the list of proposals for Master-2 internships to take place at Spintec during Spring 2020. In most cases, these internships are intended to be suitable for a longer-term PhD work. Interested Master-1 ...
  • Aurélien Masseboeuf joins SPINTEC (September 13th, 2019)Aurélien Masseboeuf joins SPINTEC
    Aurélien Masseboeuf is a recognized expert in transmission electron microscopy techniques applied to magnetic microscopy. Following a PhD and post-doc period in Grenoble, he further developed his expertise and carrier during ten years as CNRS ...
  • MILF – An ANR project (September 13th, 2019)MILF - An ANR project
    MILF stands for Magnetic Imaging at Low dimensions & high Frequencies. It is a 36-month-long early-carrier ANR project. Magnetic events such as domain reversal, domain wall propagation and vortex oscillations are fast processes, broad source ...

Publications

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 W tip ccrushed<br/>©  A. MASSEBOEUF  2015 Holography Experiment<br/>©  Aurelien Masseboeuf


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