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KTi1-xSnxOPO4晶体生长及其物理性质的研究
Growth and Physical Properties of KTi1-x SnxOPO4 Crystals
【摘要】 采用熔盐法生长了一系列磷酸氧钛锡钾单晶体并测定了其晶体结构和相应的物理性质。发现在该类型晶体中随着四价阳离子Sn对Ti的掺杂替代导致晶胞参数增大 ,铁电相变温度降低和非线性光学特性减弱。同时发现在居里温度附近 ,一些晶体出现类似快离子导体特性的电导率跃迁
【Abstract】 Single crystals of KTi 1- x Sn x OPO 4 solid solutions and KSnOPO 4 were grown by using flux method,and their structure and physical properties were studied.The replacement of Ti by Sn was found to increase the unit cell parameters,shift the ferroelectric transition to lower temperatures,and decrease the nonlinear optical susceptibility.Near curie temperature T c ,some of the crystals exhibit a jump in electrical conductivity,typical of superionics.
【关键词】 磷酸氧钛钾;
磷酸氧钛锡钾;
熔盐法;
倍频效应;
铁电体;
电导;
【Key words】 KTiOPO 4; KTi 1 x Sn x OPO 4; flux method; SHG properties; ferroelectrics; electrical conductivity;
【Key words】 KTiOPO 4; KTi 1 x Sn x OPO 4; flux method; SHG properties; ferroelectrics; electrical conductivity;
【基金】 俄罗斯基础研究基金项目 (No .0 0 0 2 16 0 5 9) ;俄罗斯教育部科学研究基金 (No .5 0 17)
- 【文献出处】 人工晶体学报 ,Journal of Synthetic Crystals , 编辑部邮箱 ,2002年01期
- 【分类号】O782.4
- 【下载频次】48