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Temperature dependence of the electric field gradient in HfF4.HF.2H2O

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Abstract

The hyperfine quadrupole interaction in HfF4.HF.2H2O was studied using the time differential perturbed angular correlation (TDPAC) technique. The electric field gradient (EFG) and the corresponding asymmetry parameter were measured in the temperature range from 9 to 350 K. The EFG is characterized by a rather strong increase with temperature, whereas the asymmetry parameter reaches its maximum value (η≈1) at aboutT=160 K. At 420 K, the complex is dehydrated and looses HF: The quadrupole parameters determined from subsequent TDPAC measurements are charateristic for HfF4.

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Authors and Affiliations

  1. Institut für Genetik und für Toxikologie von Spaltstoffen, Kernforschungszentrum Karlsruhe, Postfach 3640, D-7500, Karlsruhe, FRG

    W. -G. Thies

  2. Institut für Experimentelle Kernphysik, Universität Karlsruhe, Postfach 3640, D-7500, Karlsruhe, FRG

    H. Appel &  G. M. Then

  3. Institut für Material- und Festkörperforschung, Kernforschungszentrum Karlsruhe, Postfach 3640, D-7500, Karlsruhe, FRG

    R. Heidinger

Authors
  1. W. -G. Thies
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  2. H. Appel
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  3. R. Heidinger
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  4. G. M. Then
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Thies, W.G., Appel, H., Heidinger, R. et al. Temperature dependence of the electric field gradient in HfF4.HF.2H2O. Hyperfine Interact 30, 153–165 (1986). https://doi.org/10.1007/BF02394315

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  • DOI: https://doi.org/10.1007/BF02394315

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