论文标题
镁质内元素旋转厅系统
Magnon Nernst Effect in Magnon Spin Hall Systems
论文作者
论文摘要
由于自旋取消，镁旋转霍尔系统几乎无法显示实验可观察到的粒子和热传输现象。在这里，我们证明了镁旋转霍尔系统可以通过考虑两个典型的系统，即抗铁磁性（AFM）耦合双层蜂窝蜂窝honycomb honeycomb honeycomb honeycomb ferromagnets和单层蜂窝蜂窝状抗抗抗铁药物，从而在外部磁场下表现出镁Nernst效果和热厅效应。两种系统都通过自旋流动（SF）相或直接经历了从AFM相到场极化相的磁相变。在这两个系统中，在纵向温度梯度下都存在镁NEST效应和热厅效应，可以将其视为磁相变变的指标，而霍尔电导率依赖于磁场符合磁相跃迁的顺序。
Magnon spin Hall systems could hardly show experimentally observable particle and thermal transport phenomena intrinsically due to the spin cancellation. Here we demonstrated that the magnon spin Hall systems can exhibit magnon Nernst effect and thermal Hall effect under external magnetic field by considering two typical systems, i.e. the antiferromagnetically (AFM) coupled bilayer honeycomb ferromagnets and monolayer collinear honeycomb antiferromagnet. The both systems experience magnetic phase transitions from AFM phase to a field-polarized phase via a spin-flop (SF) phase or directly. In both systems, there exist magnon Nerst effect and also thermal Hall effect under a longitudinal temperature gradient, which can be regarded as the indicator of the magnetic phase transitions, with the Hall conductivity dependence on magnetic field consistent with the order of magnetic phase transition.
