Abstract
AbstractThe rapidly increasing information density required of modern magnetic data storage devices raises the question of the fundamental limits in bit size and writing speed. Magnetic‐field‐induced magnetization reversal down to picosecond timescales depends on magnetic pulse shape and strength as well as on the sample magnetic properties and dimensions. Optical control of magnetization dynamics is possible on a subpicosecond timescale. This chapter gives an overview of how the combination of magnetic microscopy with lateral resolution down to ∼10 nm and synchrotron/laser light sources with pulses ranging form 50–0.1 ps can address the relevant dynamical processes in magnetic materials.
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