A general definition for ideal complex permittivity in a liquid mixture was reached by considering a thermodynamically ideal mixture under the effect of an applied harmonic electric field. The resulting definition is independent of any particular dielectric model, as well as the polarity of the components.
BUEP, ADRIAN H.
"Dielectric properties of liquid systems: the ideal complex permittivity in liquid mixtures,"
Turkish Journal of Physics: Vol. 33:
5, Article 1.
Available at: https://journals.tubitak.gov.tr/physics/vol33/iss5/1