Abstract
The hyperfine Splitting of the 80.6-keVγ transition in Er166 has been measured in erbium metal between 4.2 °K and 40 °K using the Mössbauer effect. There is evidence for a unique magnetic field and electric fieldgradient at all nuclei in erbium metal. The magnetic field decreases from (7.55±0.20)·106 Oe at 4.2 °K to (6.10±0.40)·106 Oe at 40 °K. Extrapolation to 0 °K yieldsH (0 °K)=(7.60±0.20)·106 Oe. The quadrupole interaction energy for the 80.6-keV state iseQ V Z′Z′/4=(0.95±0.20)·10−6 eV at 4.2 °K. These results are discussed and compared with other measurements.
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We wish to thank Prof. W.Kleen and Prof. H.Maier-Leibnitz for their friendly support of this work. The preparations of the HoAl2 by Dr. A.Meyer from the Forschungslaboratorium der Siemens und Halske AG. München is gratefully acknowledged.
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Hüfner, S., Kienle, P., Wiedemann, W. et al. Hyperfine fields in erbium metal. Z. Physik 182, 499–509 (1965). https://doi.org/10.1007/BF01380881
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DOI: https://doi.org/10.1007/BF01380881