Post-doctoral Position – SIRIUS Beamline

Post-doctoral Position – SIRIUS Beamline

SOLEIL Synchrotron

Saint-Aubin (Paris), France

The SIRIUS beamline: The SIRIUS beamline of SOLEIL works in the energy range from 1.2 Kev to 13 keV and serves two scientific communities: the first is active in the field Soft Interfaces (SI) and the second in the field Semiconductors, Oxides and Magnetic materials (SOM). This post-doc position is open for working on the SOM topics.

The beamline is designed to perform both x-ray diffraction and x-ray absorption in the hard and tender x-ray range, with dedicated instrumentation for working, at grazing incidence, on surfaces, interfaces and nanostructures. Moreover, the beamline is able to measure high quality Diffraction Anomalous Fine Structure (DAFS) spectra and the possibility of changing x-ray polarization (linear vertical, linear horizontal, circular) given by a HU36 undulator source makes it also suitable for dichroism and resonant magnetic scattering studies. Unprecedented high flux, coupled to good spectral resolution in the tender x-ray, is provided thanks to a novel multilayer grating monochromator, developed in collaboration with SOLEIL optics group. Very recently, the high potential of the beamline for working in the tender x-ray has been made fully available via the installation of a 4-circle diffractometer operated under high vacuum. This instrument, which is operational and has been available for users’ experiments since January 2018, opens numerous perspectives for new science in solid state physics, chemistry and materials engineering. Further upgrades to this instrument are envisaged.

Missions

We are looking for a post-doctoral researcher (m/f) who will work at the SIRIUS beamline of synchrotron SOLEIL (Saint-Aubin, Paris area, France) under the supervision of one of our beamline scientists (Dr. Gianluca Ciatto), and in collaboration with national and international partner groups.

He (She) will be involved in the commissioning activities of the SIRIUS beamline, and in particular with the ones related to our new high vacuum 4-circle diffractometer (design, test and installation of new components, upgrades). More specifically, He (She) will be involved in the design and commissioning of sample environments for applying electric and magnetic fields to be mounted inside the diffractometer. He (She) may be involved in local contact activities for experiments exploiting the high vacuum diffractometer.

He (She) will participate in XAFS, X-ray Dichroism and DAFS experiments for the characterisation of nitride semiconductors doped with various impurities or embedding nanoclusters, interesting for their optical and magnetic properties (applications in UV LEDs for water purification, IR laser, spintronics). He (She) participates in analogous experiments on functional oxides (ferroelectric, relaxors, Metal-Insulator Transition, etc.).

He (She) will carry on data reduction and analysis for some of the experiments mentioned above with particular emphasis on the study of the local structure of defects, complexes and clusters in semiconductors and oxides.

He (She) will present the scientific results obtained at SIRIUS in national and international conferences.

Qualifications and Expertise

The candidate should hold a PhD in Physics, Materials Science, Chemistry, or associated disciplines. Experience with synchrotron radiation techniques and in particular with X-ray absorption spectroscopy, X-ray dichroism and relative analysis and simulation techniques will be highly appreciated, as well as the motivation to learn DAFS data analysis.

Moreover, the following skills will be appreciated:

  • Strong motivation to work in applied physics and materials science;
  • Ability in experimental development;
  • Capacity to work as a team member and in collaboration with different groups;
  • Some experience in scientific programming (Matlab, Python, etc. ) will be an asset;
  • Some experience of working in a synchrotron beamline environment would be an asset.

The position requires multidisciplinary skills, sense of responsibility and autonomy together with the ability to work within a team.

The candidate must be fluent in English (written and spoken). Knowledge of French may be useful, but it is not required.

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© EuroJobsites 2018

EuroJobsites is a UK registered company number: 4694396 VAT number: GB 880 9055 04

Registered address: EuroJobsites Ltd, Unit 8, Kingsmill Business Park, Kingston Upon Thames, London, KT1 3GZ, United Kingdom

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