Emission of Coherent Propagating Magnons by Insulator-Based Spin-Orbit-Torque Oscillators
Emission of Coherent Propagating Magnons by Insulator-Based Spin-Orbit-Torque Oscillators
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DOI：
10.1103/physrevapplied.10.041002
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发表时间：
2018-10-23
影响因子：
4.6
通讯作者：
Demidov, V. E.
中科院分区：
文献类型：
--
作者：
Evelt, M.;Soumah, L.;Demidov, V. E.
我们通过实验证明了通过直流电流感应的自旋轨道扭矩在超薄磁绝缘体薄膜中产生相干传播磁振子。我们表明，这一具有挑战性的任务可以通过使用具有大垂直磁各向异性的磁绝缘体薄膜来完成。我们展示了简单且通用的自旋轨道扭矩装置，可用作基于绝缘体的自旋电子应用的高效纳米级相干传播磁振子源。
We experimentally demonstrate generation of coherent propagating magnons in ultrathin magnetic insulator films by spin-orbit torque induced by a direct electric current. We show that this challenging task can be accomplished by use of magnetic insulator films with large perpendicular magnetic anisotropy. We demonstrate simple and versatile spin-orbit-torque devices that can be used as highly efficient nanoscale sources of coherent propagating magnons for insulator-based spintronic applications.