Understanding and controlling vibrations in condensed matter is emerging as an essential
necessity both at fundamental level and for the development of a broad variety of …

Understanding the ultrafast evolution of atomic and electronic rearrangements under
nonequilibrium conditions in organic, inorganic and biological materials plays a …

We introduce ultrafast low-energy electron diffraction (ULEED) in backscattering for the
study of structural dynamics at surfaces. Using a tip-based source of ultrashort electron …

Two-dimensional systems such as surfaces and molecular monolayers exhibit a multitude of
intriguing phases and complex transitions. Ultrafast structural probing of such systems offers …

Understanding the atomic mechanisms governing the growth of bimetallic nanoalloys is of
great interest for scientists. As a promising material for photocatalysis applications, Pt–Pd …

The understanding of crystal growth mechanisms has broadened substantially. One
significant advancement is based in the conception that the interaction between particles …

Ultrafast electron diffraction allows the tracking of atomic motion in real time, but space
charge effects within dense electron packets are a problem for temporal resolution. Here, we …

We numerically investigate the properties of coherent femtosecond single electron wave
packets photoemitted from nanotips in view of their application in ultrafast electron diffraction …

Inelastic scattering experiments are key methods for mapping the full dispersion of
fundamental excitations of solids in the ground as well as nonequilibrium states. A …

Earthquake rupture speeds exceeding the shear-wave velocity have been reported for
several shallow strike-slip events. Whether supershear rupture also can occur in deep …