Angle-resolved photoemission spectroscopy (ARPES), with its exceptional sensitivity to both
the binding energy and the momentum of valence electrons in solids, provides unparalleled …

In the 60 years since the invention of the laser, the scientific community has developed
numerous fields of research based on these bright, coherent light sources, including the …

Magnetic phenomena are ubiquitous in nature and indispensable for modern science and
technology, but it is notoriously difficult to change the magnetic order of a material in a rapid …

We review the phenomenology of light-induced ultrafast magnetization dynamics, with
emphasis on metallic compounds. The interaction of femtosecond laser pulses with …

The magnetic type-II Weyl semimetal (MWSM) Co3Sn2S2 has recently been found to host a
variety of remarkable phenomena including surface Fermi-arcs, giant anomalous Hall effect …

Despite decades of research, the role of the lattice and its coupling to the magnetisation
during ultrafast demagnetisation processes is still not fully understood. Here we report on …

Experimental observations of the ultrafast (less than 50 fs) demagnetization of Ni have so far
defied theoretical explanations particularly since its spin-flip** time is much less than that …

Vacuum-ultraviolet (VUV) light is critical for the study of molecules and materials, but the
generation of femtosecond pulses in the VUV region at high repetition rates has proven …

The ultrafast dynamics of magnetic order in a ferromagnet are governed by the interplay
between electronic, magnetic, and lattice degrees of freedom. In order to obtain a …

The udkm1Dsim toolbox is a collection of Python classes and routines to simulate the
thermal, structural, and magnetic dynamics after laser excitation as well as the …