Reentrant dipole glass properties in (1-x)BaTiO3 - xBiScO3, 0.1 ≤ x ≤ 0.4

Dielectrics that provide higher electrostatic energy densities are urgently required for power electronic applications; recent observations in the solid solution of (1 x)BaTiO3 xBiScO(3) show promise, and low temperature re-entrant dipole glass behavior is inferred. Here, direct observations of switchable polarization freezing in the reentrant dipole-glass (1 x)BaTiO3 xBiScO(3), 0.1 <= x <= 0.4 are reported. As the temperature is decreased, the switchable polarization increases rapidly, reaches a maximum value at the reentrant temperature (T-R) before disappearing at low temperatures. With measurement electric field (E), the T-R is found to increase in (1 x) BaTiO3 xBiScO(3), 0.1 <= x <= 0.4, as a function of x. (C) 2012 American Institute of Physics. [doi: 10.1063/1.3675861]