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On the Motion of Solute Atoms in Cages and Loops in Metal Lattices Studied with Nuclear Methods
Author(s) -
Vogl G.
Publication year - 1987
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221440124
Subject(s) - vacancy defect , quadrupole , aluminium , relaxation (psychology) , diffusion , zirconium , trapping , quadrupole splitting , materials science , metal , molecular physics , atomic physics , mössbauer spectroscopy , chemical physics , chemistry , crystallography , thermodynamics , physics , metallurgy , psychology , social psychology , ecology , biology
Interstitial cages in metals are found with the Mössbauer effect on 57 Fe in aluminium, silver, and α‐zirconium after trapping of irradiation‐induced interstitials and recently after implantation. Cage motion manifests itself in a strong decay of the apparent line intensity due to quasielastic effects and — in suitable systems — in a relaxation of the quadrupole splitting. The results are compared to the results of internal friction methods. Correlation effects in solute diffusion via vacancies can be described in terms of vacancy caging and looping. Analogies between interstitial and vacancy caging are discussed. The possibilities to observe and study these effects with nuclear methods are considered.