β-NMR of Palladium foil

T. J. Parolin, Z. Salman, Jak Chakhalian, D. Wang, T. A. Keeler, Md Hossain, R. F. Kiefl, K. H. Chow, G. D. Morris, R. I. Miller, W. A. MacFarlane

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations

Abstract

Beta-detected NMR (β-nmr) of low-energy implanted 8Li + 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 8Li is much slower than expected from the Korringa law for such a large K. We compare results from samples of very different thicknesses: 12.5μm foil and a 100 nm thin film.

Original languageEnglish (US)
Pages (from-to)419-422
Number of pages4
JournalPhysica B: Condensed Matter
Volume374-375
DOIs
StatePublished - Mar 31 2006
EventProceedings of the Tenth International Conference on Muon Spin Rotation, Relaxation and Resonance -
Duration: Aug 8 2005Aug 12 2005

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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