| Issue |
EPL
Volume 79, Number 2, July 2007
|
|
|---|---|---|
| Article Number | 26004 | |
| Number of page(s) | 6 | |
| Section | Condensed Matter: Structural, Mechanical and Thermal Properties | |
| DOI | https://doi.org/10.1209/0295-5075/79/26004 | |
| Published online | 02 July 2007 | |
Hydrodynamics and growth laws in lamellar ordering
1
INFM-CNR, SMC Dipartimento di Fisica Università Roma 1, P.zzle A. Moro 2, 00185 Roma, Italy
2
ISC-CNR, Via dei Taurini 19, 00185 Roma, Italy
3
Istituto Nazionale di Fisica Nucleare, Sezione di Bari - via Amendola 173, Bari, Italy
4
Dipartimento di Fisica, Università di Bari - via Amendola 173, 70126 Bari, Italy
Received:
5
April
2007
Accepted:
4
June
2007
Ordering of lamellar phases described by a free-energy functional with short-range interactions is numerically investigated in two dimensions by means of a pseudo-spectral method. The ordering process is found to depend on the fluid viscosity: it is arrested for large viscosity values and proceeds as a power law for small ones, with a crossover regime for intermediate values. At varying the free energy parameters, strong evidence has been found that the ordering law, unlike binary mixtures, is not unique.
PACS: 64.75.+g – Solubility, segregation, and mixing; phase separation / 47.54.-r – Pattern selection; pattern formation / 82.35.Jk – Copolymers, phase transitions, structure
© Europhysics Letters Association, 2007
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