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Measurement of the magnetic dipole moment of the 57 keV state of143Pr by time-differential perturbed angular correlation technique

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Abstract

The magnetic dipole interaction of the 57 keV state of143Pr in an environment of metallic cerium and in an aqueous solution of Ce(NO3)3 has been investigated by time-differential perturbed angular correlation experiments. The measurements were performed in external magnetic fields between 0.94 T and 2.24 T and at temperatures between 77 K and 1200 K. From the temperature dependence of the observed spin rotation the ionicity of the Pr ion is determined as Pr4+ in the Ce(NO3)3 and as Pr3+ in Ce metal in the intermediate nuclear state. The magnetic dipole moment of the 57 keV state is derived as μ = +(3.4±0.1)μK. From the room temperature relaxation constants α2 = (0.19±0.03)109s−1 for Ce(NO3)3 and α2= (0.07±0.02)109s−1 for Ce metal the correlation times τ J = (3.8±0.7)10−13s and τ J = (1.4±0.4)10−13s respectively are deduced. The angular correlation coefficientA 2=+0.17±0.02 is in good agreement with the result of a decoupling experiment.

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Author notes

  1. V. Lakshminarayana

    Present address: Nuclear Physics Department Andhra University, India

Authors and Affiliations

  1. Institut für Experimentalphysik der Universität Hamburg, Hamburg, Germany

    G. Netz, W. Prieske, H. Daum & E. Gerdau

  2. Institut für Strahlen- und Kernphysik der Universität Bonn, Bonn, Germany

    V. Lakshminarayana & P. Herzog

Authors
  1. G. Netz
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  2. W. Prieske
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  3. H. Daum
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  4. E. Gerdau
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  5. V. Lakshminarayana
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  6. P. Herzog
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Netz, G., Prieske, W., Daum, H. et al. Measurement of the magnetic dipole moment of the 57 keV state of143Pr by time-differential perturbed angular correlation technique. Hyperfine Interact 3, 147–155 (1977). https://doi.org/10.1007/BF01021546

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  • DOI: https://doi.org/10.1007/BF01021546

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