论文标题
TB2TI2O7 Pyrochlore中铁电，介电和磁性行为的同时
Concurrence of ferroelectric, dielectric and magnetic behaviour in Tb2Ti2O7 pyrochlore
论文作者
论文摘要
我们报告了由两步固态反应方法制备的TB2TI2O7 pyrochlore中的铁电特性。从382 K观察到的凹入P-E（极化与电场）环证明了铁电性，在下面，该环保持为尖头或香蕉形。电介质图清楚地显示在383 K处的异常，磁数据显示出偏离380 K的偏差，支持观察到的铁电序。讨论了TB2TI2O7中铁电性的起源，这是由于Tio6八面体中的结构变形引起的。
We report the ferroelectric property in Tb2Ti2O7 pyrochlore, prepared by a two-step solid-state reaction method. A concave P-E (polarisation vs electric field) loop observed from 382 K confirms ferroelectricity, below which the loop remains as pointed or banana-shaped. Dielectric plots clearly show an anomaly at 383 K and the magnetic data reveals a deviation from 380 K supporting the observed ferroelectric ordering. The origin of ferroelectricity in Tb2Ti2O7 is discussed which is due to the structural distortion in TiO6 octahedron.
