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Mössbauer determination of the E2/M1 mixing ratio of the 77 keV transition in197Au and of the sign of the electric field gradient in KAu(CN)2

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Abstract

A Mössbauer measurement of the E2/M1 mixing ratio of the 77 KeV transition in197Au yielded δ=−0.352±0.005. With this result, Mössbauer absorption spectra of KAu(CN)2 single crystals show that the electric field gradient at197Au in this compound is negative. This implies that the field gradient is mainly produced by 6pz electrons. The data also indicate a large vibrational anisotropy of Au in KAu(CN)2.

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Authors and Affiliations

  1. Physik Department, Technische Universität München, D-8046, Garching, Germany

    H. Prosser, F. E. Wagner, G. Wortmann & G. M. Kalvius

  2. Institute of Physics, University of Uppsala, Uppsala, Sweden

    R. Wäppling

Authors
  1. H. Prosser
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  2. F. E. Wagner
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  3. G. Wortmann
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  4. G. M. Kalvius
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  5. R. Wäppling
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Prosser, H., Wagner, F.E., Wortmann, G. et al. Mössbauer determination of the E2/M1 mixing ratio of the 77 keV transition in197Au and of the sign of the electric field gradient in KAu(CN)2 . Hyperfine Interact 1, 25–32 (1975). https://doi.org/10.1007/BF01022438

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  • DOI: https://doi.org/10.1007/BF01022438

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