Emmanuelle Jal
38
Documents
Presentation
**Research Interest**
I am interested in ultra-thin magnetic thin films and more particularly on femtomagnetism. To probe the magnetization in such thin materials I am mainly using soft x-rays and XUV. The interactions between XUV/x-rays with matter allow to have a spatial resolution of the order of the nanometer, to be chemically selective and to be magnetic sensitive. Depending on the used geometry: in transmission, reflectivity or scattering one can be sensitive in depth, or in the sample plane. My favourite technique is to use x-ray Resonant Magnetic Reflectivity (XRMR) to probe the inhomogeneity of the magnetization in depth. To be time resolved I am using XUV/X-rays pulses of hundreds of femtoseconds provided by femtoslicing or Free Electron Laser (FEL) sources at SOLEIL, BESSY, LCLS, FLASH, FERMI, European XFEL, as well as High Harmonic Generation sources at the Laboratoire d'Optique Appliqué.
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**Fundings**
2018-2021: CNRS Momentum <http://www.cnrs.fr/fr/une/actus/2017/momentum-laureats.html>
2014: Post-doctoral grant of « Direction Général des Armements (DGA) »
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**Professional Experience**
**Chargée de Recherche, Sorbonne Université, Paris, France**
Study of ultrafast magnetization dynamics by time- and spatial-resolved x-ray scattering and spectroscopy experiment.
- Laboratoire Chimie Physique - Matière et Rayonnement
- Responsible of the time-resolved x-ray resonant magnetic reflectivity activity and femtoslicing experiments
- Performing time resolved experiment measurements: all optical, XFEL
Oct 2017 – present **Teaching assistant and Postdoctoral Fellow, Sorbonne Université, Paris, France**
Study of the ultrafast magnetization dynamics thanks to time- and spatial-resolved X-ray scattering and spectroscopy experiment
- Laboratoire Chimie Physique - Matière et Rayonnement, Jan Lüning
- Teaching chemistry and physics at undergraduate level
- Growing thin magnetic films by sputtering
- Responsible of the time-resolved x-ray resonant magnetic reflectivity activity
- Performing time resolved experiment measurements
Sept 2015 – Sep 2017 **Research Associate at SLAC, Stanford, USA**
X-ray spectroscopy with temporal (fs) and spatial (nm) resolution to study all optical switching in ferromagnetic materials
- Stanford Institute for Materials & Energy Sciences, H. Dürr and J. Stöhr group
- Grant of « Direction Général des Armements (DGA) »
- Use of synchrotron radiation (SSRL, ALS), and Free Electron Laser (X-FEL) at LCLS
- Responsible of the beamtime at Berkeley synchrotron (ALS)
- Dynamic study of magnetic and electronic properties of CoPt and FePt thin films
USA, Jan 2014 – Aug 2015 **PhD at Université de Grenoble, Grenoble, France**
Study of magnetic films by soft X-ray Resonant Magnetic Reflectivity (XRMR): magnetic profile in various situations (temperature and anisotropy)
- Institut Néel, Jean-Marc Tonnerre
- X-ray resonant magnetic reflectivity formalism
- Use of synchrotron radiation to study the magnetic depth profile of Fe/Cu and Fe/Ag thin films (SOLEIL (SEXTANTS), ESRF, PSI)
- International collaboration with the Max Planck Institute (Halle, Allemagne)
- Teaching physics at undergraduate and graduate levels at PHELMA engineering school
Mar 2010 – Oct 2013 **Research Student, Imperial College, London, UK**
Study of martensitic transformation in shape memory alloys
- Department of Materials, David Dye group
- UROP grant (Undergraduate Research Opportunities Programme)
UK, Jun 2009 – Aug 2009 **Research Student, Institut Lumière Matière, Lyon, France**
Magnetic study of CoPt nanoparticules with Florent Tournus
July 2008 ---
**Education**
**Ph.D. in Condensed Matter Physics**
Adviser: Jean-Marc Tonnerre, France 2010 - 2013 **Master Diploma in Condensed Matter Physics**
Université de Grenoble, France 2009 - 2010 **Engineering Diploma of Physics Nanoscience** PHELMA, Grenoble - INP, France
2007 - 2010 **Classes préparatoires** Lycée du Parc, Lyon, France
2005 - 2007