Regensburg 2000 – wissenschaftliches Programm
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AM: Magnetismus
AM 23: Dünne Schichten IV: Magnetisierung und Spinstrukturen
AM 23.5: Vortrag
Donnerstag, 30. März 2000, 16:30–16:45, H22
Nuclear magnetic resonace studies of epitaxial Co layers on single crystal substrates — •Jürgen Kohlhepp1, Gustav Strijkers1,2, and Wim de Jonge1 — 1Department of Applied Physics, Eindhoven University of Technology, The Netherlands — 2Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, USA
Nuclear Magnetic Resonance (NMR) is a powerful tool to study the structure of ultrathin magnetic Co-films on an atomic scale. NMR complements other structural analysis techniques, such as Mössbauer spectroscopy and X-ray diffraction. In contrast to surface analysis techniques as for example STM and LEED, NMR is able to probe the structure of buried layers and interfaces. Such a detailed knowledge of the structure on an atomic scale is essential, because the magnetic and transport properties depend crucially on the bulk and interface structure of the films. For example, the magnetic switching behaviour is influenced by the structural quality and affects the interlayer coupling, coercivity and anisotropy. The usefulness of NMR is exemplified with a study of epitaxially MBE-grown Co layers on single crystal Cu(100), Cu(110), Cu(111), Pd(111), Pt(111), and Fe(100)substrates, which not have been investigated systematically with NMR before.