INTERPRETATION OF MÖSSBAUER MEASUREMENTS OF DIFFUSIVITYReport as inadecuate




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Abstract : The line broadening, ƊƉm, measured directly from high temperature Mössbauer spectra has been claimed to be proportional to the diffusivity. A correction, ƊƉth, accounting for the decrease in the line width with temperature, was introduced. It was shown that this brings experimental results closer to the values predicted by the diffusion-jump model 2 h-τ. It is shown that diffusive line broadening can be detected at a lower temperature than if the correction ƊƉth is ignored.





Author: M. Ron F. Hornstein

Source: https://hal.archives-ouvertes.fr/



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