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Feasibilities of nuclear techniques for the study of molecular defects in metals and semiconductors

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Abstract

Nuclear techniques, like Mössbauer effect and perturbed γγ angular correlation spectroscopy (PAC), have proven themselves to be sensitive tools for labelling and identifying probe atom-defect complexes. In these experiments, the “molecular defect” is investigated via the nuclear hyperfine interaction, which is measured at the site of the radioactive probe atom. Here, we shall put the emphasis on the PAC spectroscopy, which often uses111In/111Cd as radioactive probe atom. In metals, based on the identification of simple probe atom-defect pairs, the agglomeration of defects after cold-working and the interaction of vacancies with He atoms will be discussed. In semiconductors, it will be focussed on the interaction between dopant atoms, which strongly determines the electrical properties of these materials.

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  1. Fakultät für Physik, Universität Konstanz, D-7750, Konstanz, FRG

    Thomas Wichert

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  1. Thomas Wichert
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Wichert, T. Feasibilities of nuclear techniques for the study of molecular defects in metals and semiconductors. Hyperfine Interact 45, 143–160 (1989). https://doi.org/10.1007/BF02405877

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