Shin-ichi Wada

TL;DR: The present study of heavy-atom ionization dynamics in high-intensity hard-x-ray pulses makes a step forward towards molecular structure determination with x-ray free-electron lasers.

TL;DR: Signs of ultrafast charge redistribution from the inner-shell ionized Se atom to its molecular partners are found, and significant displacement of the atomic constituents in the course of multiple ionization is observed.

TL;DR: The observation of DCH states, which exhibit a unique signature, and agreement with theory proves the feasibility of double-core-hole spectroscopy, and exploit the ultrashort pulse duration of the free-electron laser to eject two core electrons on a time scale comparable to that of Auger decay and demonstrate possible future X-ray control of physical inner-shell processes.

TL;DR: An experimental method based on soft X-ray spectroscopy in the gas phase using synchrotron radiation to probe the adsorption of water at the surface of isolated, substrate-free TiO2 nanoparticles (NPs), paving the way towards new investigation methods in heterogeneous catalysis on nanomaterials.

TL;DR: The experiment verifies the theory behind the chemical sensitivity of two-site DCH states by comparing a set of small molecules with respect to the energy shift of the two- site DCH state and by extracting the relevant parameters from this shift.