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MA: Magnetismus

MA 8: Spindynamik I

MA 8.13: Talk

Friday, March 4, 2005, 18:15–18:30, TU H1028

Time-resolved photoelectron emission microscopy of magnetic nanostructures — •B. Heitkamp, L. Heyne, H.A. Durr, and W. Eberhardt — BESSY GmbH, Albert-Einstein-Strasse 15, 12489 Berlin

In view of the ever-growing field of magnetoelectronics it is of major importance to understand the fundamental physical phenomena. Our approach is to combine nm spatial resolution of a photoemission microscope (PEEM) and fsec-laser technique. By analyzing the spin-polarization of the emitted photoelectrons magnetic sensitivity can be obtained. The magnetic nanostructures under investigation show a strong dependence of the emission characteristics on light polarization and wavelength. This can be explained by plasmon-excitation and other coherence effects. Pump-probe experiments can be used to study the electron and spin-dynamics on a fsec-time scale.