Cs^+:RbTiOPO_4晶体的铁电相变和电导特性

Ferroelectric Phase Transition and Electrical Conductivity of the Cs^+:RbTiOPO_4 Crystals

在二元体系RbTiOPO4 CsTiPO5中通过助熔剂法生长出不同Cs+ 掺杂浓度的Cs+ :RbTiOPO4晶体 ,X射线粉末衍射确定所获晶体的物相为斜方晶系Pna2 1型 ,研究了晶体的铁电相变及离子电导等物理性质 。

Single crystals of Cs +:RbTiOPO 4 were grown by flux method in the RbTiOPO 4 CsTiPO 5 system,and X ray analysis showed that the crystals are orthorhombic with space group Pna 2 1.Temperature dependences of dielectric permittivity and electrical conductivity of Cs +:RbTiOPO 4 crystals were studied.These data showed that the Cs +:RbTiOPO 4 crystals are typical of second order ferroelectric phase transitions.