Berlin 2005 – wissenschaftliches Programm

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MA: Magnetismus

MA 7: Magnetische dünne Schichten II

MA 7.7: Vortrag

Freitag, 4. März 2005, 16:45–17:00, TU H1012

Spin polarization, structure and chemical composition of ultrathin Rh layers on Fe(100) — •Marco Busch, Markus Gruyters, and Helmut Winter — Humboldt-Universität zu Berlin, Institut für Physik, Newtonstrasse 15, D-12489 Berlin, Germany

We report on spin- and energy-resolved secondary electron emission, induced by grazingly scattered 100 keV protons from ultrathin Rh layers on Fe(100). A finite spin polarization of secondary electrons is observed up to 3 monolayers of Rh. The growth of Rh at room temperature is studied by grazing scattering of 50 keV He+ ions. We find that growth of Rh on Fe(100) deviates from a perfect pseudomorphic layer-by-layer growth. The chemical composition is investigated by Auger electron spectroscopy induced by 5 keV electrons and grazingly scattered 200 keV protons.