Kiyonobu Nagaya

TL;DR: In this article, the authors reported an unprecedented high degree of ionization of xenon atoms by 1.5 keV free-electron laser pulses to charge states with ionization energies far exceeding the photon energy.

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: The concept, design and performance of Japan's compact free-electron laser (FEL) facilities, the SPring-8 Compact SASE Source test accelerator (SCSS) and SPring 8 Angstrom Compact free electron LAser (SACLA), and their applications in mainly atomic, molecular and optical science are reviewed in this paper.

TL;DR: In this article, a new phenomenon where a massive electronic excitation induces a collective change in the bond character that leads to transient lattice contraction was reported. But the authors did not consider the effect of electron delocalization during the solid-to-plasma transition.

TL;DR: The first observation of electron-transfer-mediated decay (ETMD) and interatomic Coulombic decay (ICD) from the triply charged states with an inner-valence vacancy is reported, using the Ar dimer as an example.