Cation ordering and dielectric properties of PbMg1/3Nb2/3O3-PbSc1/2Nb1/2O3 solid solution crystals

被引：6
|
作者：
Raevski, IP [1 ]
Emelyanov, SM [1 ]
Savenko, FI [1 ]
Zakharchenko, IN [1 ]
Bunina, OA [1 ]
Malitskaya, MA [1 ]
Bogatin, AS [1 ]
Sakhar, EV [1 ]
机构：
[1] Rostov State Univ, Inst Phys, Rostov Na Donu 344090, Russia
来源：
FERROELECTRICS | 2003年 / 285卷
关键词：
cation ordering; ferroelectrics; perovskites; phase transitions; relaxors;
D O I：
10.1080/00150190390206121
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
(1-x)PbMg1/3Nb2/3O3-(x)PbSc1/2Nb1/2O3 solid solution crystals have been grown by the flux method. X-ray supercell reflections due to B-cation ordering were observed for crystals in the 0.1 < x < 0.65 compositional range. In as-grown crystals diffuseness of dielectric permittivity maximum is the lowest for x = 0.65 composition and increases toward the end members of solid solution. Such behavior is assumed to be due to the random-site ordering of B-site cations and non-monotonic dependence of the compositional order-disorder phase transition temperature on concentration.
引用
收藏
页码：657 / 664
页数：8
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