XFEL, time-resolved (2)

[LSC2-03(Invited)] Ultrafast and ultrasmall: all-optical switching of magnetization

*Clemens von Korff Schmising¹ (1. Max Born Institut, Berlin)

We combine laboratory and FEL-based experiments to explore the fundamental temporal and spatial limits of all-optical magnetization reversal in GdFe alloys. We find write/erase-cycles of <7 ps and magnetic bit size down to 25 nm.