On the basis of a diffusion equation including a periodic potential, exact expressions are given for the longitudinal and transverse diffusion parameters measured in unaxial smectic phases by spin-echo NMR. For relatively high values of the ordering potential, an intrinsic Airhenius factor appears in the definition of the rate of jump across the smectic layers.
Translational diffusion in smectic-A phases
MORO, GIORGIO;NORDIO, PIER LUIGI;
1984
Abstract
On the basis of a diffusion equation including a periodic potential, exact expressions are given for the longitudinal and transverse diffusion parameters measured in unaxial smectic phases by spin-echo NMR. For relatively high values of the ordering potential, an intrinsic Airhenius factor appears in the definition of the rate of jump across the smectic layers.File in questo prodotto:
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