Institut für Werkstoffwissenschaften, Technische Universität Dresden, Germany.
Phys Rev Lett. 2011 Aug 12;107(7):077602. doi: 10.1103/PhysRevLett.107.077602. Epub 2011 Aug 9.
An in situ structural description of the origin of the ferroelectric properties as a function of the applied electric field E was obtained by synchrotron x-ray diffraction. A setup was used to average the effects of the preferred orientation induced by the strong piezoelectric strain and solve in situ the crystal structure as a function of the applied electric field. Hence, we were able to describe the microscopic origin of the macroscopic ferro- and piezoelectric properties of the most widely used ferroelectric material, lead zirconate titanate.
通过同步加速器 X 射线衍射获得了铁电性能起源随外加电场 E 变化的原位结构描述。采用了一种装置来平均由强压电应变引起的择优取向的影响,并实时解决晶体结构随外加电场的变化。因此,我们能够描述应用最广泛的铁电材料锆钛酸铅的宏观铁电和压电性能的微观起源。