Abstract
Interstitial jump processes are studied using “in-beam Mössbauer technique” combining Coulomb excitation and recoil implantation. After implantation of Coulomb-excited57Fe into metals (α-Zr, Al, Nb and Au) at low temperature, a relatively large part of the implanted atoms ends up on interstitial positions yielding large quadrupole splittings. Inα-Zr, the interstitial line shows a clear quadrupole relaxation accompanied by a sharp decrease of the resonance intensity between 40 K and 100 K. This effect is interpreted as localized fast jumps of57Fe atoms in the octahedral cage of the hep Zr lattice. A preliminary result from a time-differential measurement onZr 57Fe is presented.
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Invited talk given at the Third Seeheim Workshop on Mössbauer Spectroscopy.
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Yoshida, Y. In-beam Mössbauer study of atomic jump processes. Hyperfine Interact 47, 95–113 (1989). https://doi.org/10.1007/BF02351602
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DOI: https://doi.org/10.1007/BF02351602