Nonlinear effects of membrane fluctuations in the dilute lamellar phase

Ramaswamy, Sriram ; Prost, J. ; Lubensky, T. C. (1994) Nonlinear effects of membrane fluctuations in the dilute lamellar phase EPL: Europhysics Letters, 27 (4). p. 285. ISSN 0295-5075

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Official URL: http://iopscience.iop.org/0295-5075/27/4/006

Related URL: http://dx.doi.org/10.1209/0295-5075/27/4/006

Abstract

The static structure factor of the dilute sterically stabilised lamellar phase is calculated and found to have an Ornstein-Zernike form with a correlation length that diverges at infinite dilution. The relaxation time for concentration fluctuations at large wave number q is shown to go as q-3 with a coefficient independent of the membrane bending rigidity. The membrane fluctuations also give rise to strongly frequency-dependent viscosities at high frequencies.

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