论文标题
通过反自旋霍尔效应检测到的镁热爱德尔斯坦效应
Magnon Thermal Edelstein Effect Detected by Inverse Spin Hall Effect
论文作者
论文摘要
在带有dzyaloshinskii-moriya相互作用（DMI）的易于平面抗铁磁铁中，镁质受到有效的旋转摩肌锁定的约束。平面温度梯度可以产生具有指定极化的镁的界面积累，从而实现镁热爱德尔斯坦效应。从理论上讲，我们在相邻的重金属中对这种热驱动的自旋极化的注射和检测具有强大的自旋效果。我们发现，反自旋霍尔电压单调取决于温度和DMI，但在硬轴各向异性上是非单调的。违反直觉，镁质热埃德尔斯坦效应是沿Néel载体施加的磁场的均匀函数。
In an easy-plane antiferromagnet with the Dzyaloshinskii-Moriya interaction (DMI), magnons are subject to an effective spin-momentum locking. An in-plane temperature gradient can generate interfacial accumulation of magnons with a specified polarization, realizing the magnon thermal Edelstein effect. We theoretically investigate the injection and detection of this thermally-driven spin polarization in an adjacent heavy metal with strong spin Hall effect. We find that the inverse spin Hall voltage depends monotonically on both temperature and the DMI but non-monotonically on the hard-axis anisotropy. Counterintuitively, the magnon thermal Edelstein effect is an even function of a magnetic field applied along the Néel vector.
