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μ+SR knight shift in single crystal PrNi5—Evidence for muon-induced distortion of crystal-field levels

  • Session 2. Magnetism
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Abstract

New transverse field measurements on single crystal PrNi5 have been carried out. The angular dependence of the Knight shift indicatesμ + at f-sites of the hexagonal unit cell [(1/2 0 0), (0 1/2 0), (1/2 1/2 0)] in apparent contrast to previous conclusions. It is confirmed that the temperature dependence of the Knight shift does not scale with the bulk susceptibility. While the latter shows a distinct maximum around 15 K and Van Vleck behaviour for T→0 K, the Knight shift does not exhibit any saturation down to 2 K. This peculiar behaviour is explained by aμ +-induced change of the crystal field level scheme of the nearest-neighbour Pr3+-ions that significantly reduces the splitting between the lowest lying levels.

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Authors and Affiliations

  1. Institute for Intermediate Energy Physics, ETH Zürich, CH-5232, Villigen PSI, Switzerland

    R. Feyerherm, A. Amato, F. N. Gygax, A. Schenck & U. Zimmermann

  2. Racah Institute of Physics, Hebrew University of Jerusalem, 91904, Jerusalem, Israel

    A. Grayevsky & N. Kaplan

Authors
  1. R. Feyerherm
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  2. A. Amato
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  3. F. N. Gygax
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  4. A. Schenck
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  5. U. Zimmermann
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  6. A. Grayevsky
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  7. N. Kaplan
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Feyerherm, R., Amato, A., Gygax, F.N. et al. μ+SR knight shift in single crystal PrNi5—Evidence for muon-induced distortion of crystal-field levels. Hyperfine Interact 85, 329–335 (1994). https://doi.org/10.1007/BF02069443

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  • DOI: https://doi.org/10.1007/BF02069443

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