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Mössbauer Line Broadening in Trivalent Iron Compounds
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13.Moreover, further experiments (details to be published separately) show that in a high magnetic field the broad Mössbauer line of ferric acetylacetonate splits up into four much sharper lines. One would expect that, if lattice vibrations were responsible for the 20‐linewidth broadening observed in the zero‐field spectrum of this compound, they should always cause such a broadening, independently of any splitting produced by magnetic interactions.
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26.In the case of ferric acetylacetonate, further evidence stems from Mössbauer studies in an external magnetic field (see Ref. 13); the main features of the spectra observed can be accounted for in terms of spin‐spin relaxation.
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