Intersystem crossing (ISC), formally forbidden within nonrelativistic quantum theory, is the
mechanism by which a molecule changes its spin state. It plays an important role in the …

Ultrafast spectroscopy techniques use sequences of ultrashort light pulses (with femto-to
attosecond durations) to study photoinduced dynamical processes in atoms, molecules …

X-ray spectroscopy is an important tool for scientific analysis. While the earliest
demonstration experiments were realised in the laboratory, with the advent of synchrotron …

In the last two decades non-equilibrium spectroscopies have evolved from avant-garde
studies to crucial tools for expanding our understanding of the physics of strongly correlated …

Femtosecond synchrotron pulses were generated directly from an electron storage ring. An
ultrashort laser pulse was used to modulate the energy of electrons within a 100 …

We review the tremendous advances in ultrafast X-ray science, over the past 15 years,
making the best use of new ultrashort X-ray sources including table-top or large-scale …

Attosecond science opened the door to observing nuclear and electronic dynamics in real
time and has begun to expand beyond its traditional grounds. Among several spectroscopic …

Over more than a century, X-rays have transformed our understanding of the fundamental
structure of matter and have been an indispensable tool for chemistry, physics, biology …

The underlying physics of all ferromagnetic behavior is the cooperative interaction between
individual atomic magnetic moments that results in a macroscopic magnetization. In this …

Capturing the evolving geometric and electronic structure in the course of a chemical
reaction or biological process is the principal aim of time-resolved X-ray spectroscopies …