β-NMR of Isolated Lithium in Nearly Ferromagnetic Palladium

T. J. Parolin, Z. Salman, J. Chakhalian, Q. Song, K. H. Chow, M. D. Hossain, T. A. Keeler, R. F. Kiefl, S. R. Kreitzman, C. D. P. Levy, R. I. Miller, G. D. Morris, M. R. Pearson, H. Saadaoui, D. Wang, and W. A. MacFarlane
Phys. Rev. Lett. 98, 047601 – Published 24 January 2007

Abstract

The temperature dependence of the frequency shift and spin-lattice relaxation rate of isolated, nonmagnetic Li8 impurities implanted in a nearly ferromagnetic host (Pd) are measured by means of β-detected nuclear magnetic resonance (β-NMR). The shift is negative, very large, and increases monotonically with decreasing T in proportion to the bulk susceptibility of Pd for T>T*100K. Below T*, an additional shift occurs which we attribute to the response of Pd to the defect. The relaxation rate is much slower than expected for the large shift and is linear with T below T*, showing no sign of additional relaxation mechanisms associated with the defect.

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  • Received 23 August 2006

DOI:https://doi.org/10.1103/PhysRevLett.98.047601

©2007 American Physical Society

Authors & Affiliations

T. J. Parolin1, Z. Salman2, J. Chakhalian3,*, Q. Song4, K. H. Chow5, M. D. Hossain4, T. A. Keeler4, R. F. Kiefl2,4,6, S. R. Kreitzman2, C. D. P. Levy2, R. I. Miller2, G. D. Morris2, M. R. Pearson2, H. Saadaoui4, D. Wang4, and W. A. MacFarlane1

  • 1Department of Chemistry, University of British Columbia, Vancouver, BC, V6T 1Z1, Canada
  • 2TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, V6T 2A3, Canada
  • 3Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USA
  • 4Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, V6T 1Z1, Canada
  • 5Department of Physics, University of Alberta, Edmonton, AB, T6G 2G7, Canada
  • 6Canadian Institute for Advanced Research, Toronto, ON, M5G 1Z8, Canada

  • *Former address: Max-Plank-Institut für Festkörperforschung, D-70569, Stuttgart, Germany.

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Vol. 98, Iss. 4 — 26 January 2007

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