Relaxation in Random Pores
Document Type
Article
Publication Date
9-1-1998
Department
Physics and Astronomy
School
Mathematics and Natural Sciences
Abstract
To study the dynamics of a binary liquid mixture in glass pores we have performed a molecular dynamics simulation and measured the concentration fluctuation autocorrelation function F-m(q,t) and several other dynamic functions. The relaxation pattern of F-m may be described with an exponentially decaying diffusion term and a logarithmically decaying activation term. Although the system is at a very high temperature in the one-phase region, the results for the velocity autocorrelation functions and the mean-square displacement functions are deceptively similar to those of the bulk when the bulk is in its two-phase region. We discuss what this may mean when the pore size is very large. (C) 1998 American Institute of Physics.
Publication Title
Journal of Chemical Physics
Volume
109
Issue
9
First Page
3304
Last Page
3307
Recommended Citation
Lee, J.
(1998). Relaxation in Random Pores. Journal of Chemical Physics, 109(9), 3304-3307.
Available at: https://aquila.usm.edu/fac_pubs/5069