Dynamics of lyotropic lamellar phases

Ramaswamy, Sriram ; Prost, J. ; Cai, W. ; Lubensky, T. C. (1993) Dynamics of lyotropic lamellar phases EPL: Europhysics Letters, 23 (4). p. 271. ISSN 0295-5075

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Official URL: http://iopscience.iop.org/0295-5075/23/4/006

Related URL: http://dx.doi.org/10.1209/0295-5075/23/4/006

Abstract

We model dilute lyotropic smectics as a periodic stack of compressible-fluid membranes with width w separated by an incompressible background fluid of thickness d - w. We calculate the dynamical modes for this model as a function of the wave number q. For qd « 1, we find precisely the hydrodynamic modes of a two-component smectic. For qd » 1, we find various non-hydrodynamic modes which may be observable in experiment.

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