Interaction X-rays and neutrons with matter - Jean Daillant (Soleil synchrotron) Room: 5th Floor The aim of the lecture will be both to provide the attendees with solid yet simple principles to understand x-ray and neutron scattering and give them a flavor of more sophisticated applications. After a short introduction to synchrotron radiation and neutrons, I will discuss the interaction of x-rays and neutrons with matter. Starting from a geometrical description, I will first emphasize similarities between x-ray and neutron scattering. Differences will then be discussed using a more detailed description of interactions. Based on this analysis, I will discuss when x-rays or neutrons should be better used to tackle a given scientific question. The lecture will be illustrated with numerous examples, mostly in soft-condensed matter.

Diffraction with X-rays and neutrons - Claire Colin (Institut Néel, Grenoble) Room: 5th Floor

Example I: multiferroics materials - Claire Colin (Institut Néel, Grenoble) Room: 5th Floor

Example II: materials for batteries - Gwaenaelle Rousse ( Sorbonne University) Room: 5th Floor This course will present the different battery technologies (Li-ion, Na-ion, all-solid-state batteries) and the materials used as electrodes and solid state electrolytes in those systems. Emphasis will be put on the main challenges faced to increase the battery performances, and how neutrons can be useful for tacking them.

Introduction to small-angle scattering - the use of X-rays and Neutrons - Stephan Roth (KTH, Stockholm) Room: 5th Floor

Using neutrons to look at molecules in confinement - Heloisa N. Bordallo (Niels Bohr Institute) Room: 5th Floor

Example II: Application of small angle scattering X/n for the study of skyrmionics - Jonathan White Room: 5th Floor

Spectroscopy, inelastic scattering - Matteo D’Astuto (Institut Néel, Grenoble) Room: 5th Floor In the first part of this lecture I will introduce general concepts with a particular focus on the difference between resonant and non-resonant scattering of X-rays.

Theory of functional magnetic materials, from x-ray spectroscopy and neutron scattering to magnetocaloric refrigeration - Olle Eriksson (Uppsala University) Room: 5th Floor

Example I : RIXS/INS for superconductivity - Matteo D’Astuto (Institut Néel, Grenoble) Room: 5th Floor I will then give some example of non-resonant scattering of X-rays. I will show in particular how this gives conceptually similar results to inelastic neutron scattering (INS) in the case of phonons. With example on superconductors, I will highlight the technical difference justifying the choice of X-ray or neutron as probe, depending on the material, the environment and the specific details of the phonon dispersion of interest. In the second part of the lecture I will focus on the resonant scattering of X-rays, and the information that can be obtained with Resonant Inelastic X-ray Scattering (RIXS), in particular why this will give access to magnetic excitation and compare the results to INS for spin-wave dispersion in cuprate high temperature superconductors.

Example II : relaxation, QENS and ionic liquids - Alexander Matic (Chalmers Unversity) Room: 5th Floor Relaxation, QENS and ionic liquid Ionic liquids are salts with a melting temperature below 100°C and are of high interest as electrolytes for future energy technology. The interest arises from intrinsic properties such as high ionic conductivity, good electrochemical stability, negligible vapour pressure and non-flammability. In this lecture we will look into how neutrons and x-rays can be used to understand structure and dynamics on the mesoscale in ionic liquids and their link to the functional properties.

X-ray based spectroscopy for the study of perovskite photovoltaic materials - Håkan Rensmo (Uppsala University) Room: 5th Floor

In-situ measurements - Stephen Hall Room: 5th Floor

Surface science technics - Frederic Ott (LLB, Saclay) Room: 5th Floor

Example I : reflectivity for batteries - Thomas Saerbeck (ILL) Room: 5th Floor

Photoemission and angle-resolved photoemission : A tool to probe the electronic structure of materials - Patrick Le Fèvre (SOLEIL synchrotron) Room: 5th Floor XPS Photoemission is based on the photoelectric effect. An incident photon is absorbed by an atom which uses its energy hν to emit an electron. In a photoemission experiment, this photoelectron is collected by an analyzer able to measure its kinetic energy as well as, in angle-resolved photoelectron spectroscopy (ARPES), its emission angle. In this lecture, we will describe this process and the information contained in photoemission spectra. One can first make a clear difference between the observation of core levels, atomic-like electrons described by the usual quantum numbers n, l and ml, and the more or less delocalized valence electrons described by their binding energy and their wavevector k. Core level spectroscopy gives a quite direct access to the local chemical environment of the excited atom. They can also be measured in a pump-probe experiment, where a pulse of UV or visible light prepares the material into an excited state (pump) prior to its analysis by photoemission with a soft X-ray photon (probe). Variation of core level binding energy with the time delay between the pump and the probe allows for a measurement of the excited state lifetime, a key parameter for materials to be used in solar cells or for hydrogen production by water photoelectrolysis. On valence states, ARPES is a unique tool to give an image of the material band structure. The basis of this technique will also be described.

Photo emission and absorption on catalysts - Jonas Weissenrieder (KTH, Stockholm) Room: 5th Floor

MAXIV - Ana Labrador Room: 5th Floor

European Spallation Source - Ken Andersen (ESS) Room: 5th Floor

University Industry Knowledge Transfer: Institutional & Organizational Factors - Devrim Göktepe-Hultén (Lund University) Room: 5th Floor

Imagery X-rays and neutrons - Nikolay Kardjilov (Helmholtz-Zentrum Berlin) Room: 5th Floor

Coherent X-rays - Gerardina Carbone (MAX-IV) Room: 5th Floor