Capturing ultrafast magnetization phenomenon using femtosecond x rays

Abstract

Recent advances in x-ray and extreme ultraviolet sources have enabled a new frontier for ultrafast studies of magnetic materials. Modern x-ray free electron lasers and high-harmonic generation sources combine the power of x-ray techniques available at traditional synchrotron sources with femtosecond temporal resolution, facilitating fundamental insights into ultrafast magnetization phenomenon, including laser induced demagnetization dynamics and all-optical switching. This Research Update highlights recent developments of femtosecond x-ray sources and experimental studies where the unique advantages offered by these sources have enabled the development of foundational knowledge on underlying ultrafast magnetization behavior.