ABSTRACT
In recent years, extensive research aimed at improving the
understanding of the ultrafast magnetization dynamics has been
carried out. Novel phenomena, for example the influence of the
lateral confinement in small structures on the spin dynamics [1-
2] and the spin dynamics due to spin-polarized currents [4-8]
make this a very interesting area for fundamental research. The
magnetization dynamics are, on the other hand, also of crucial
importance for the application of magnetic materials in current
and future spintronic devices like hard drive read heads, magnetic
random access memories (MRAMs), and spin torque oscillators. The
relaxation properties in these materials and devices are particu-
larly important in view of the power consumption of spintronic
devices.
