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TDPAC studies of interaction between He and A = 140 elements in Fe

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Abstract

Room-temperature time-differential perturbed-angular-correlation (TDPAC) spectra of 140Ce in an Fe foil and in a He-doped Fe foil, unannealed and annealed in vacuum at various temperatures, were taken in order to see whether Ce and He form in Fe a complex that has a definite geometrical structure, as suggested in first-principles density functional theory calculations. Our TDPAC results do not indicate the existence of such a complex in Fe. We also discuss briefly He-vacancy clusters formed in the bombardments of He and 140Cs (a precursor of 140Ce).

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Authors and Affiliations

  1. Research Reactor Institute, Kyoto University, Kumatori, Sennan, Osaka, 590-0494, Japan

    Y. Ohkubo, A. Taniguchi, Q. Xu, M. Tanigaki & K. Sato

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  1. Y. Ohkubo
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  2. A. Taniguchi
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  3. Q. Xu
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  4. M. Tanigaki
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  5. K. Sato
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Correspondence to Y. Ohkubo.

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Proceedings of the 5th Joint International Conference on Hyperfine Interactions and International Symposium on Nuclear Quadrupole Interactions (HFI/NQI 2014) Canberra, Australia, 21–26 September 2014

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Ohkubo, Y., Taniguchi, A., Xu, Q. et al. TDPAC studies of interaction between He and A = 140 elements in Fe. Hyperfine Interact 230, 187–193 (2015). https://doi.org/10.1007/s10751-014-1085-9

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  • DOI: https://doi.org/10.1007/s10751-014-1085-9

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