Abstract
The time dependence of the recoil velocity of a140Ce nucleus in a La and a LaF3 lattice after β emission is studied via the Doppler shift of the 1.596 MeV γ transition in140Ce. Evidence is obtained that the nucleus does not leave the lattice site even at a recoil energy of about 20 eV but carries out a damped oscillation. The quantitative comparison of the recoil velocity with the predictions of lattice theory leads to partial agreement.
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Supported by Deutsche Forschungsgemeinschaft, contract Schu 222
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Wolf, F., Ahlert, J., Ziegeler, L. et al. Dependence of the nuclear recoil motion on the phonon spectrum of solids investigated by nuclear resonance fluorescence. Z. Physik B - Condensed Matter 55, 287–291 (1984). https://doi.org/10.1007/BF01304079
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DOI: https://doi.org/10.1007/BF01304079