论文标题
铁电及其定向路由中的表面武装激发
Surface Ferron Excitations in Ferroelectrics and Their Directional Routing
论文作者
论文摘要
电偶极子和磁性偶极子之间的二元性激发了铁龙水和镁质之间的最新比较。在这里，我们预测铁电绝缘子中的表面极化波或````福隆''，考虑了远程偶极相互作用。我们预测的属性与磁性对应物截然不同，\ textit {i.e。}表面````damon-eShbach''damon-eShbach''damon-eShbach“ ferromagnets in Ferromagnets中。偶极相互作用将锁定的圆极化和动量推向离子等离子体频率。另一方面，低频模式是平面内极化的波向量。下部分支的强各向异性在被聚焦激光束激活时会导致电偏振和手性的方向排放，从而使铁电器设备中的光学路由。
The duality between the electric and magnetic dipoles inspires recent comparisons between ferronics and magnonics. Here we predict surface polarization waves or ``ferrons" in ferroelectric insulators, taking the long-range dipolar interaction into account. We predict properties that are strikingly different from the magnetic counterpart, \textit{i.e.} the surface ``Damon-Eshbach" magnons in ferromagnets. The dipolar interaction pushes the ferron branch with locked circular polarization and momentum to the ionic plasma frequency. The low-frequency modes are on the other hand in-plane polarized normal to their wave vectors. The strong anisotropy of the lower branch renders directional emissions of electric polarization and chiral near fields when activated by a focused laser beam, allowing optical routing in ferroelectric devices.
