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Field-cycling NMR relaxometry of liquids confined in porous glass: evidence for Levy-walks.

作者信息

Stapf S, Kimmich R, Seitter R O

机构信息

Sektion Kernresonanzspektroskopie, Universität Ulm, Germany.

出版信息

Magn Reson Imaging. 1996;14(7-8):841-6. doi: 10.1016/s0730-725x(96)00213-5.

DOI:10.1016/s0730-725x(96)00213-5
PMID:8970092
Abstract

The frequency dependence of the longitudinal relaxation time T1 (v) of different liquids confined to microporous glass features a distinct difference between polar and nonpolar adsorbates. This finding is explained by "weak" and "strong" adsorption, respectively. The T1 dispersion of polar adsorbates can be described with the aid of Lévy walk statistics of "bulk-mediated surface diffusion" recently suggested by Bychuk and O'Shaughnessy.

摘要

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