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Abstract
Relaxor behaviour has been investigated in the (1−x)Ba(Sc1/2Nb1/2)O3−x PbTiO3 (x = 0·60) solid solution, which was synthesised by the traditional solid state reaction. The dielectric property of the system was thoroughly analysed. A strong dispersion of the maximum dielectric permittivity was observed, and the temperature increased with increasing frequency. The frequency dependence of the temperature of dielectric maximum follows the Vogel–Fulcher law, as in canonical relaxors. A deviation from the Curie–Weiss law was observed below the Burns temperature, which is well above the Curie temperature. The hysteresis loop measured at room temperature exhibits weak ferroelectric properties.