Abstract
The intermetallic compounds LaNi5 and FeTi ate Pauli paramagnets and therefore should not show any ferromagnetic resonance (FMR). Nevertheless FMR signals are observed in crushed samples and their intensity increases with the number of hydrogenation-dehydrogenation cycles. They are strongly temperature dependent between 77 and 500 K. The results are interpreted on the assumption that the FMR originates from interacting ferromagnetic or superparamagnetic clusters formed by precipitating Ni or Fe atoms near the surface. The results are discussed in relation to previous magnetization and surface composition investigations which had revealed metallic precipitations of Ni or Fe catalytically active for hydrogen dissociation.
Work under the Swiss National Research Program “Energy”.
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© 1981 Plenum Press, New York
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Shaltiel, D., von Waldkirch, T., Stucki, F., Schlapbach, L. (1981). Ferromagnetic Resonance in Hydrogenated/Dehydrogenated LaNi5 and FeTi. In: Devreese, J.T., Lemmens, L.F., Van Doren, V.E., Van Royen, J. (eds) Recent Developments in Condensed Matter Physics. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-1086-0_48
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DOI: https://doi.org/10.1007/978-1-4684-1086-0_48
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