Dielectric constant of ionic solutions: a field-theory approach.

  title={Dielectric constant of ionic solutions: a field-theory approach.},
  author={A. Levy and David Andelman and Henri Orland},
  journal={Physical review letters},
  volume={108 22},
We study the variation of the dielectric response of a dielectric liquid (e.g. water) when a salt is added to the solution. Employing field-theoretical methods, we expand the Gibbs free energy to first order in a loop expansion and calculate self-consistently the dielectric constant. We predict analytically the dielectric decrement which depends on the… CONTINUE READING