单畴化不完善的铁电晶体的衍射强度

THE DIFFRACTION INTENSITIES OF INCOMPLETELY POLED FERROELECTRIC CRYSTALS

单畴化不完善对铁电晶体的衍射强度有重要影响,在晶体结构分析中必须予以考虑。对于磷酸氢铅,本文导出了用来修正这种影响的关系式。在该晶体的结构分析中引入这种修正以后,得到了较好的拟合。

Incomplete poling of ferroelectric crystals has significant effect on their diffraction intensities. In the crystal structure determination, this effect must be taken into account. For lead hydrogen phosphate, appropriate equations are derived to correct this effect. Incorporating this correction in the structure determination of this crystal, a better fit is obtained.