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

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

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 ...
IFW – SPINTEC collaborative workshop (October 14th, 2018)
SPINTEC laboratory and IFW-Dresden have agreed to strengthen their ties through an international collaborative agreement. This takes the so-called form of an International Associated Lab (LIA), supported by both CNRS and the Leibniz Society. Although ...
Masters thesis projects for Spring 2019 (October 10th, 2018)
You find here the list of proposals for Master-2 internships to take place during Spring 2019. In most cases, these internships are intended to be suitable for a longer-term PhD work. Interested Master-1 students are ...
Chapter — Magnetic nanowires and nanotubes (April 14th, 2018)
Michal Stano, Olivier Fruchart, Magnetic nanowires and nanotubes, pp.155-267, in Handbook of Magnetism and Magnetic Materials 27, E. Brück Ed (2018). DOI: 10.1016/bs.hmm.2018.08.002 We propose a review of the current knowledge about the synthesis, magnetic properties ...