论文标题
抑制混合不当铁电的铁电开关屏障
Suppressing The Ferroelectric Switching Barrier in Hybrid Improper Ferroelectrics
论文作者
论文摘要
将铁电材料整合到新的技术应用中需要低强制现场材料，因此，设计策略以减少铁电开关障碍。在这项第一项原则研究中，我们表明，对铁电基态具有很强作用的双轴菌株也可以用来调整混合不当的铁电ruddlesdlesdledlesdlesdenpopper氧化物的开关屏障。我们确定抑制此内在屏障的菌株 - 公差因子相图的区域，并表明可以将其与菌株诱导的相变向非极性相有关。
Integration of ferroelectric materials into novel technological applications requires low coercive field materials, and consequently, design strategies to reduce the ferroelectric switching barriers. In this first principles study, we show that biaxial strain, which has a strong effect on the ferroelectric ground states, can also be used to tune the switching barrier of hybrid improper ferroelectric Ruddlesden-Popper oxides. We identify the region of the strain -- tolerance factor phase diagram where this intrinsic barrier is suppressed, and show that it can be explained in relation to strain induced phase transitions to nonpolar phases.
