Information transport and processing by pure magnonic spin currents in insulators is a promising alternative to conventional charge-current-driven spintronic devices. The absence of Joule heating and reduced spin wave damping in insulating ferromagnets have been suggested for implementing efficient logic devices. After the successful demonstration of a majority gate based on the superposition of spin waves, further components are required to perform complex logic operations. Here, we report on magnetization orientation-dependent spin current detection signals in collinear magnetic multilayers inspired by the functionality of a conventional spin valve. In Y₃Fe₅O₁₂|CoO|Co, we find that the detection amplitude of spin currents emitted by ferromagnetic resonance spin pumping depends on the relative alignment of the Y₃Fe₅O₁₂ and Co magnetization. This yields a spin valve-like behavior with an amplitude change of 120% in our systems. We demonstrate the reliability of the effect and identify its origin by both temperature-dependent and power-dependent measurements.

中文翻译：

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使用铁性共线多层旋转阀进行磁振子检测。

绝缘子中纯磁自旋自旋电流的信息传输和处理是传统电荷电流驱动自旋电子器件的有前途的替代方法。已经提出在绝缘铁磁体中不存在焦耳加热和减小自旋波阻尼来实现有效的逻辑器件。基于自旋波的叠加成功演示了多数门之后，需要其他组件来执行复杂的逻辑运算。在这里，我们报告了受常规自旋阀功能启发的共线磁性多层中与磁化方向相关的自旋电流检测信号。在Y ₃ Fe ₅ O _12中| CoO | Co，我们发现铁磁共振自旋泵浦发射的自旋电流的检测幅度取决于Y ₃ Fe ₅ O ₁₂和Co磁化的相对排列。在我们的系统中，这会产生类似自旋阀​​的行为，幅度变化为120％。我们证明了效应的可靠性，并通过温度和功率相关的测量来确定其起源。