The linear Poisson-Boltzmann equation is solved with a variable dielectric constant to account for dielectric saturation. Two different spatially dependent forms of the dielectric constant are compared. It is shown that the electrostatic repulsion between two flat plates is decreased by dielectric saturation and that it depends in a complicated way on both the dielectric constant and the electric field.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Surfaces, Coatings and Films
- Colloid and Surface Chemistry