This meeting is intended as a
continuation of the meeting on X-ray Spectroscopies in Lausanne
Similar meetings include the 2011 CECAM meeting in Zurich.
Core level spectroscopies have
contributed to our understanding of electronic, magnetic
and structural properties in physics, chemistry and
materials science. While the portfolio of experimental techniques
rapidly grows with higher flux, smaller beam sizes, better
energy and time resolution and various sample environments, theory does not always keep up and many experimental
results cannot fully be accounted for. This trend is becoming more
pronounced with the advent of sources of
intense and ultrashort X-ray pulses such as Free Electron Lasers (FELs).
Various aspects such as the effects of
the orbital hybridization, translation symmetry, exchange potential,
spin-orbit coupling, electron correlations, orbital polarization,
magnetic order, plus the final state effects of the core hole
potential, intra-atomic (multiplet) effects, (final state) charge
transfer effects and multi-electron excitations, are treated
differently in the current theoretical approaches. In our opinion,
it is desirable to make a concerted effort in order to analyze the
current status and discuss how to advance the theory of core level
A different workshop
The aim of the workshop is not to just
show the latest new results, but rather to identify problems in
the description of core shell spectra and to discuss the status of
theoretical simulations. The format of the workshop is informal and
we hope for lively discussions. While the considerable progress in
theoretical modelling of core level spectra during the past decades
documents the better understanding of electronic structure, we would
like to focus during the workshop on cases where to date all
theories fail or where no consensus among theorists on the correct
approach has been achieved.
Presentations: We would like to use as much as possible time
for discussions. There are time slots of 25 and 20 minutes. We would
like to ask the speakers to give a presentation of max. 15 minutes
in order to have the remaining time for discussions. I would like
everybody to focus on the specific procedure/methods used to obtain
the results presented. You can assume everybody knows the basics of
x-ray absorption (XAS) and resonant inelastic x-ray scattering (RIXS).
The talks given at the workshop will not be made available online
Contributed online presentations:
We would like to ask all speakers to submit a ~5 page presentation
(in ppt(x) or pdf format) that introduces the talk. You can also
submit additional short presentations for other related topics that
you will not present and short general introductions to the topic.
You can also submit links to publications and preprints.
You can start sending this material now. Also some people that are
not able to be present will be asked to submit a presentation.