Two year Post Doc position in ultrafast magnetism

Tasks:

• Set up and characterize the advanced X ray based pump-probe technique
• Growing and characterizing samples
• Data acquisition
• Analyzing data

The goal of this postdoc project is to set up a new X-ray based instrumentation to address specific questions concerning the mechanisms at work during femtosecond laser induced demagnetization. Our ambition is to take full advantage of the element selectivity, time and spatial resolution of X-ray Resonant Magnetic Scattering and Reflectivity (tr-XRMS or tr-XRMR) to study the dynamics in ferrimagnetic materials. Providing a combined time, element and depth-resolved description of structure and spins in ferrimagnetic materials will be of great benefit to describe ultrafast demagnetization mechanisms. In this context tr-XRMR(S) will provide unique opportunities.

Her/his mission will be to set up and characterize the advanced pump-probe technique at the SEXTANTS beamline. She/he will employ the TR- XRMR(S) to describe depth modulations of the magnetization profiles. She/he will benefit from the expertise of the two hosting laboratories: (i) IPCMS in Strasbourg for rare-earth/transition-metal sample related challenges and (ii) LCPMR in Paris for magnetic reflectivity set up and analysis.

The postdoc will conduct collaborative work within the two hosting team at IPCMS with Christine Boeglin and Nicolas Bergeard and at LCPMR with Emmanuelle Jal and Boris Vodungbo, by growing and characterizing samples, and analyzing data recorded at the SOLEIL French synchrotron. She/he will take part of the construction and testing of the pump-probe set up development interacting with Nicolas Jaouen, the beam line scientist in charge of SEXTANTS beam line. Finally, she/he will be implied in experiments performed at Free Electron Laser facilities such as FERMI and the European XFEL in Hamburg.

This position is funded for 2 years by the French ANR (Agence National de la Recherche) and will take place in collaboration between, the LCPMR (Laboratoire Chimie Physique Matière et Rayonnement, CNRS-Sorbonne Université in Paris) team systèmes fortement corrélés - Matériaux magnétiques) and the CNRS- IPCMS team dynamic processes at University Strasbourg. The PostDoc will be located at CNRS-IPCMS Strasbourg, but will travel to Paris to (i) develop and perform experiments at SEXTANTS beamline of SOLEIL and to (ii) gain expertise in magnetic reflectivity analysis within the LCPMR team.

The postdoc will conduct collaborative work within the two hosting team at IPCMS with Christine Boeglin and Nicolas Bergeard and at LCPMR with Emmanuelle Jal and Boris Vodungbo, by growing and characterizing samples, and analyzing data recorded at the SOLEIL French synchrotron. She/he will take part of the construction and testing of the pump-probe set up development interacting with Nicolas Jaouen, the beam line scientist in charge of SEXTANTS beam line.Christine.Boeglin@ipcms.unistra.fr and Emmanuelle.jal@sorbonne-universite.fr (http://www.ipcms.unistra.fr/?page_id=8433&lang=en) and (https://lcpmr.cnrs.fr/content/emmanuelle-jal)

More info:
• Because of COVID, flexible start between April 2021 and Oct 2021.
• Health, pension and unemployment securities are provided.
• Application deadline: Feb. 1, 2021

Requirements:

• Should hold a PhD degree in physics or a related discipline.
• A strong expertise in magnetism and/or time-resolved condensed matter experiments and/or synchrotron experiments would be helpful.#
• A demonstrated track record of performing excellent research within collaborative projects with autonomy and enthusiasm is equally important as well as strong written and verbal communication's skills.