干涉介导的自旋波强度调制
Interference-mediated intensity modulation of spin waves
摘要：
研究了自旋波的相长干涉和相消干涉对Ni_（81）Fe_（19）（Py）薄膜中自旋波传播振幅的调制。自旋波的激发和检测使用脉冲感应时域测量感应。利用两个电脉冲在Py薄膜中发射两个干涉的高斯自旋波包。所施加的偏置磁场或两个脉冲之间的间隔用于调谐所得到的自旋波包的振幅。因此，这对于基于自旋波的低功率信息传输和处理可能是有用的。
英文摘要：
The modulation of propagating spin-wave amplitude in Ni81Fe19 (Py) films, resulting from constructive and destructive interference of spin wave, has been demonstrated. Spin waves were excited and detected inductively using pulse inductive time domain measurements. Two electrical impulses were used for launching two interfering Gaussian spin wave packets in Py films. The applied bias magnetic field or the separation between two pulses was used for tuning the amplitude of the resulting spin wave packets. This may thus be useful for spin wave based low-power information transfer and processing.
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