Abstract
Insoluble Langmuir monolayers are investigated in the presence of dipolar forces which can have two origins: permanent dipoles in neutral monolayers and induced dipoles in charged monolayers. The main effect of the additional long-range repulsive interactions is to stabilize undulating phases at thermodynamic equilibrium. Phase diagrams are obtained in two limits: close to the liquid-gas critical point via a Ginzburg-Landau expansion of the free energy (mainly within a mean-field approximation), and at low temperatures by free energy minimization. Possible applications of this theory to experiments at the liquid-gas, liquid expanded-liquid condensed, and solid-liquid transitions are discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 3673-3681 |
| Number of pages | 9 |
| Journal | The Journal of Chemical Physics |
| Volume | 86 |
| Issue number | 6 |
| DOIs | |
| State | Published - 1987 |
| Externally published | Yes |