论文标题
RF信号探测器和能量收割机基于带有垂直磁各向异性的自旋扭转二极管
RF signal detector and energy harvester based on a spin-torque diode with perpendicular magnetic anisotropy
论文作者
论文摘要
从理论上讲，我们证明了在自旋二极管（SD）中，具有一个自由磁性层，具有垂直的磁各向异性的第一和第二阶且没有外部偏置磁场，可以通过足够大的（超过一定的threshold）RF信号来激发磁化进程的平面化状态。我们还表明，这样的设备可以作为宽带能量收割机运行，能够将事件RF功率转换为DC功率，转化效率约为5％。开发的无偏差SD操作的分析理论可用于基于SDS的高效RF检测器和能量收集器的优化。
We demonstrate theoretically that in a spintronic diode (SD), having a free magnetic layer with perpendicular magnetic anisotropy of the first and second order and no external bias magnetic field, the out-of-plane regime of magnetization precession can be excited by sufficiently large (exceeding a certain threshold) RF signals with the frequencies <~250 MHz. We also show that such a device can operate as a broadband energy harvester capable of converting incident RF power into a DC power with the conversion efficiency of ~5%. The developed analytical theory of the bias-free SD operation can be used for the optimization of high-efficiency RF detectors and energy harvesters based on SDs.
