ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

Microemulsions: A Landau-Ginzburg theory

Chen, Kan and Jayaprakash, C and Pandit, Rahul and Wenzel, Wolfgang (1990) Microemulsions: A Landau-Ginzburg theory. In: Physicl Review Letters, 65 (21). pp. 2736-2739.


Download (290kB)


We present a Landau-Ginzburg theory for oil-water-surfactant mixtures with a scalar order parameter psi for the oil-water subsystem and a vector tau for the surfactant part. A physical interpretation of the parameters in terms of single-membrane energetics is given. A detailed density-functional calculation yields three-phase coexistence between oil-rich, water-rich, and microemulsion phases, and modulated phases including lamellar, columnar, and cubic phases. The computed structure factor for water in the microemulsion phase shows a variety of trends in qualitative accord with experiments.

Item Type: Journal Article
Publication: Physicl Review Letters
Publisher: American Physical Society
Additional Information: Copyright for this article belongs to American Physical Society (APS)
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 01 Sep 2004
Last Modified: 19 Sep 2010 04:14
URI: http://eprints.iisc.ac.in/id/eprint/1074

Actions (login required)

View Item View Item