Authors
AG Zilman, R Granek
Publication date
1996/12/2
Journal
Physical review letters
Volume
77
Issue
23
Pages
4788
Publisher
American Physical Society
Description
We investigate the dynamic structure factor S (q, t) of membrane phases at large wave numbers q which are sensitive to single membrane dynamics. Considering an ensemble of membrane plaquettes at random orientations, the effect of membrane thermal undulations is calculated. Their statistics is modeled by bending energy and standard hydrodynamic dispersion law. We predict a stretched exponential relaxation S (q, t)∼ e−(γ q t) 2/3 with a relaxation rate γ q∝ κ− 1/2 q 3 where κ is the bending modulus. Our results are in good agreement with recent dynamic light scattering spectra from dilute sponge phases obtained by Freyssingeas, Roux, and Nallet [(unpublished)].
Total citations
Scholar articles
AG Zilman, R Granek - Physical review letters, 1996