Local interactions of hot electron-spins with nanomagnets studied by spin-polarized scanning field emission microscopy and spectroscopy

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The project aims at the experimental study of the interactions of hot-electron spins with magnets on the atomic scale. Unoccupied electronic resonance states above the surface of magnetic nanostructures are used as model systems, focusing on the investigation of local phenomena. By means of spin-polarized scanning field emission microscopy and spectroscopy spin-polarized electrons are injected into these states, resulting in a two-dimensional hot-electron gas in front of the surface. Understanding its local interaction with magnetic surface defects, like step edges and nano-islands, or with laterally varying surface magnetization structures is in the focus of this project.