Influence of screw dislocations on the orientation of a sheared lamellar phase

Authors
Dhez, O Nallet, F Diat, O
Citation
O. Dhez et al., Influence of screw dislocations on the orientation of a sheared lamellar phase, EUROPH LETT, 55(6), 2001, pp. 821-826
Citations number
23
Categorie Soggetti
Physics
Journal title
EUROPHYSICS LETTERS
ISSN journal
02955075 → ACNP
Volume
55
Issue
6
Year of publication
2001
Pages
821 - 826
Database
ISI
SICI code
0295-5075(200109)55:6<821:IOSDOT>2.0.ZU;2-N
Abstract
We have investigated the role of screw dislocations defects in a lyotropic lamellar phase of the mixed DMPC/C12E5/water system using microscopy and sc attering techniques. Several of the usual shear-induced orientations of the lamellar phase were observed as a function of temperature and shear rate. It is suggested that the corresponding dynamical transitions are consistent with a variation in size of the defects.