论文标题
在金属构造的抗fiferromagnet双层中阻力
Magnon drag in a metal-insulating antiferromagnet bilayer
论文作者
论文摘要
我们研究由抗铁磁绝缘子和正常金属组成的双层结构。电子电流以正常金属驱动，其方向与材料之间的界面平行。由于抗铁磁铁中的局部旋转与正常金属中的巡回电子之间的界面交换耦合，然后可以在抗fiferromagnet中诱导镁电流。使用未补偿的抗磁磁界面，在界面耦合到两个退化镁模式的界面耦合中产生不对称性，我们发现有可能生成镁旋转电流。可以通过提高温度或旋转镁模式来增强镁旋转电流。
We study a bilayer structure consisting of an antiferromagnetic insulator and a normal metal. An electron current is driven in the normal metal with direction parallel to the interface between the materials. Due to interfacial exchange coupling between the localized spins in the antiferromagnet and the itinerant electrons in the normal metal, a magnon current can then be induced in the antiferromagnet. Using an uncompensated antiferromagnetic interface, creating an asymmetry in the interfacial coupling to the two degenerate magnon modes, we find that it is possible to generate a magnon spin-current. The magnon spin-current can be enhanced by increasing the temperature or by spin-splitting the magnon modes.
