论文标题
使用自旋波的微磁铁位置
Micro magnet location using spin waves
论文作者
论文摘要
在这项工作中，我们提供了实验数据，证明了使用自旋波的磁对象位置的可行性。测试结构包括y $ _3 $ fe $ _2 $（feo $ _4 $）$ _ 3 $）（yig）胶片，其中四个微安妮纳斯放在边缘。 NDFEB永久磁铁提供了恒定的平面内偏置磁场。两个天线用于自旋波激励，而其他两个天线用于电感电压测量。电影上有9个磁铁的选定位置。随后将磁铁放置在所有九个位置，并测量自旋波传递和反射。获得的实验数据显示，取决于磁铁位置的输出信号幅度差异。所有九个位置都可以通过输出功率中绝对最小值的频率和幅度来识别。所有实验均在室温下完成。可能，可以将自旋波用于远程磁性钻头读出。还讨论了这种方法的缺点和物理约束。
In this work, we present experimental data demonstrating the feasibility of magnetic object location using spin waves. The test structure includes a Y$_3$Fe$_2$(FeO$_4$)$_3$) (YIG) film with four micro-antennas placed on the edges. A constant in-plane bias magnetic field is provided by NdFeB permanent magnet. Two antennas are used for spin wave excitation while the other two are used for the inductive voltage measurement. There are nine selected places for the magnet on the film. The magnet was subsequently placed in all nine positions and spin wave transmission and reflection were measured. The obtained experimental data show the difference in the output signal amplitude depending on the magnet position. All nine locations can be identified by the frequency and the amplitude of the absolute minimum in the output power. All experiments are accomplished at room temperature. Potentially, spin waves can be utilized for remote magnetic bit read-out. The disadvantages and physical constraints of this approach are also discussed.
