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Journal Article

β-NMR of Palladium foil

MPS-Authors
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Chakhalian,  J.
Department Solid State Spectroscopy (Bernhard Keimer), Max Planck Institute for Solid State Research, Max Planck Society;

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MacFarlane,  W. A.
Department Solid State Spectroscopy (Bernhard Keimer), Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Parolin, T. J., Salman, Z., Chakhalian, J., Wang, D., Keeler, T. A., Hossain, M., et al. (2006). β-NMR of Palladium foil. Physica B, 374-375, 419-422.


Cite as: https://hdl.handle.net/21.11116/0000-000F-0243-3
Abstract
Beta-detected NMR (beta-NMR) of low-energy implanted Li-8(+) was
studied in metallic palladium. The resonance was found to have a large
negative shift with respect to the reference signal in the cubic
insulator MgO. This shift exhibited significant temperature dependence
on cooling below room temperature, approximately proportionate to the
temperature-dependent spin susceptibility of pure Pd. Thus it is
tentatively attributed to a Knight shift (K) caused by a large negative
hyperfine coupling; a phenomenon common in transition metal ions, but
not in alkalis. However, the spin-lattice relaxation of Li-8 is much
slower than expected from the Korringa law for such a large K. We
compare results from samples of very different thicknesses: 12.5 mu m
foil and a 100 nm thin film. (c) 2005 Elsevier B.V. All rights reserved.