On the Role of Dipole‐Dipole Coupling in Dielectric Media

摘要: The mathematical treatment of dipole‐dipole coupling in my previous article on magnetism applies with but little modification to the electric case. Because fluctuation effects, use usual Lorentz local field E+4πP/3 and Clausius‐Mossotti formula cannot be justified except as a first approximation valid at low density. Consequently one need not accept C‐M prediction that polar liquids should exhibit analogue ferro‐magnetism. A Gaussian approximation, or better still, based Onsager's would never allow hypothesis hindered rotation, theories Fowler Debye, may necessary explain absence spontaneous polarization, well non‐occurrence much saturation curvature strong applied fields. It is weakness their theory this consistently employed both for such purposes discontinuities dielectric constants specific heats lower temperatures (e.g., 100° HCl). surprising works so exceedingly it does nonpolar liquids, since theoretically high densities only an artificial model harmonic oscillators which regarded accurate representation induced polarization. calculations Kirkwood translational effect, causing deviations from expression gases, are extended include molecules, agree adequately recent measurements Keyes collaborators NH3.