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- Title
Landau–Brazovskii theory for the Ia3d structure.
- Authors
Podneks, V. E.; Hamley, I. W.
- Abstract
The stability of the so-called ‘‘gyroid’’ phase, of Ia3d symmetry, observed for lyotropic liquid crystals and block copolymers is accounted for using the Landau–Brazovskii theory of weak crystallization. In the mean field approximation, the Ia3d phase is stable between the lamellar and hexagonal phases close to the disordered liquid phase. When allowance is made for Brazovskii critical fluctuations, a direct phase transition between the disordered liquid and Ia3d phases is shown to be possible, in agreement with experimental observations. © 1996 American Institute of Physics.
- Subjects
PHASE equilibrium; LIQUID crystals; BLOCK copolymers
- Publication
JETP Letters, 1996, Vol 64, Issue 8, p617
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/1.567271