Microscopic methods enabling to look upon diffusivity in solids

摘要: Abstract The fullest information about the diffusivity in solids at microscopic scale (atomic) can be provided by methods sensitive to both energy and momentum transfer. Due fact that jumps are usually of short distance motion is rather slow one requires a high resolution relatively significant well-defined transfers. Hence, only two have been applied successfully up now, i.e. QNS (quasi-elastic, incoherent neutron scattering) QMS (quasi-elastic Mossbauer spectroscopy) - latter being limited fixed absolute value It seems other considered presently despite their limitations, Rayleigh scattering monochromatized synchrotron radiation TDPAC (time differential perturbed angular correlations). paper reviews merits drawbacks comparison with established technique QNS. A detailed between presented following paper.