Nature Communications (Nov 2019)
Femtosecond X-ray induced changes of the electronic and magnetic response of solids from electron redistribution
Abstract
X-ray free electron lasers allow for studying the interaction of magnetic materials with intense X-rays beyond a linear response regime. Here, the authors demonstrate the onset of X-ray induced ultrafast demagnetization in Co/Pd multilayers via a redistribution of valence electrons on timescales shorter than 40 fs.