In this Letter, we present experimental data that demonstrate a spin wave interference detection using an inverse spin Hall effect (ISHE). Two coherent spin waves are excited in a yttrium-iron garnet waveguide by continuous microwave signals. The initial phase difference between the spin waves is controlled by the external phase shifter. The ISHE voltage is detected at a distance of 2 and 4 mm away from the spin wave generating antennas by an attached Pt layer. Experimental data show ISHE voltage oscillation as a function of the phase difference between the two interfering spin waves. This experiment demonstrates an intriguing possibility of using ISHE in a spin wave logic circuit converting a spin wave phase into an electric signal.

中文翻译：

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通过逆自旋霍尔效应检测自旋波干涉

在这封信中，我们展示了使用逆自旋霍尔效应 (ISHE) 进行自旋波干涉检测的实验数据。连续微波信号在钇铁石榴石波导中激发两个相干自旋波。自旋波之间的初始相位差由外部移相器控制。通过附着的 Pt 层，在距自旋波生成天线 2 和 4 毫米的距离处检测到 ISHE 电压。实验数据表明，ISHE 电压振荡是两个干扰自旋波之间相位差的函数。该实验展示了在自旋波逻辑电路中使用 ISHE 将自旋波相位转换为电信号的有趣可能性。