Abstract
Results of Sano, Shimizu and Itoh on NMR frequencies of175Lu in ferromagnetic Lu0.02Tb0.98 and Lu0.02Dy0.98 alloys are fitted by use of a model with five adjustable parameters. Two of these are related to the magnitude and asymmetry of the electric-field-gradient (EFG) tensor at a Lu nucleus, and three others specify the magnitude of the magnetic hyperfine field and its orientation with respect to the principal axes of the EFG tensor. For LuDy it is found that (i) the hyperfine field is tilted with respect to these axes, and (ii) the asymmetry of the EFG tensor differs in magnitude from published calculated values based on a point-change model. For LuTb at least one of these two statements is shown to be true. Tilting of the hyperfine field is consistent with inferences from neutron scattering data that the 4f moment is tipped away from the b axis in Tb metal.
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Eagles, D.M., Lalousis, P. Analysis of175Lu NMR data on dilute alloys of Lu in Tb and Dy. Hyperfine Interact 8, 283–289 (1980). https://doi.org/10.1007/BF01026877
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DOI: https://doi.org/10.1007/BF01026877