DIELECTRIC AND X-RAY-DIFFRACTION STUDIES IN HIGHLY ORDERED COMPLEX PEROVSKITE PB(YB1/2NB1/2)O3

被引：23

作者：

KWON, JR ^{[1
]}

CHOO, CKK ^{[1
]}

CHOO, WK ^{[1
]}

机构：

[1] CHUNGANG UNIV,DEPT CHEM,SEOUL,SOUTH KOREA

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1991年 / 30卷 / 05期

关键词：

ORDERED COMPLEX PEROVSKITE; PB(YB1/2NB1/2)O3; ANTIFERROELECTRICITY; DIELECTRIC CONSTANT; X-RAY DIFFRACTION; STRUCTURAL PHASE TRANSITION; SPONTANEOUS STRAIN;

D O I：

10.1143/JJAP.30.1028

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Dielectric and X-ray diffraction measurements were used to characterize the structural phase transition occurring in antiferroelectric Pb(Yb 1/2 Nb 1/2)O3 compound. Dielectric behavior for ceramics shows a sharp transition with a large temperature hysteresis of about 6-degrees-C near transition temperature. The lattice parameters and spontaneous strain have been investigated in the temperature range between 20 and 400-degrees-C using X-ray powder diffraction. High temperature X-ray data indicates that the Pb(Yb 1/2 Nb 1/2)O3 undergoes an orthorhombic to cubic phase transition near transition temperature. The temperature dependence of the spontaneous strain is discussed by phenomenological theory.

引用

页码：1028 / 1033

页数：6

共 20 条

[1] DETERMINATION OF STATE PARAMETERS AND FORMULATION OF SPONTANEOUS STRAIN FOR FERROELASTICS [J].