Anomalous Diffusion in Random Pores
Physics and Astronomy
Molecular dynamics simulations are performed for binary liquids confined in the pores of Vycor glass. The individual molecular motions are studied by computing F-s, the self-part of the concentration fluctuation autocorrelation function. The results for F-s(q,t) show that the diffusion is anomalous as its relaxation rate does not follow the usual q(2) dependence on the probing wave vector q. This is explained as a confining effect of the glass walls. (C) 1998 American Institute of Physics.
Journal of Chemical Physics
(1998). Anomalous Diffusion in Random Pores. Journal of Chemical Physics, 108(6), 2265-2268.
Available at: http://aquila.usm.edu/fac_pubs/4870