Dielectric properties of barium hydrogen phosphate (BHP)

The dielectric constant and dissipation factor of a capacitor containing BHP as a dielectric medium have been measured. Capacitance and dielectric constant ε′ show the true dielectric behavior. A plot of ε′ versus lnf shows coupling of charge carriers or a dipole with acoustic phonon. Dissipation factor exhibits two Gaussians (normal distribution) located at 413 and 453 K. The dδ/dln f is also found to be a Gaussian with ln f as a variable. A theory has been developed to explain these Gaussians.