INAC, CEA Grenoble , 17 avenue des Martyrs, 38054, Grenoble, France.
Nano Lett. 2014 Jul 9;14(7):4016-22. doi: 10.1021/nl501453p. Epub 2014 Jun 3.
Using nonlocal spin injection, spin-orbit coupling, or spincaloritronic effects, the manipulation of pure spin currents in nanostructures underlies the development of new spintronic devices. Here, we demonstrate the possibility to create switchable pure spin current sources, controlled by magnetic domain walls. When the domain wall is located at a given point of the magnetic circuit, a pure spin current is injected into a nonmagnetic wire. Using the reciprocal measurement configuration, we demonstrate that the proposed device can also be used as a pure spin current detector. Thanks to its simple geometry, this device can be easily implemented in spintronics applications; in particular, a single current source can be used both to induce the domain wall motion and to generate the spin signal.
利用非局域自旋注入、自旋轨道耦合或自旋热电子学效应，可以在纳米结构中操纵纯自旋流，从而开发新型的自旋电子器件。在这里，我们演示了通过磁畴壁来控制可切换的纯自旋电流源的可能性。当畴壁位于磁路的给定位置时，纯自旋电流会被注入到非磁性导线上。通过互易测量配置，我们证明了所提出的器件也可以用作纯自旋电流探测器。由于其简单的几何形状，该器件可以很容易地应用于自旋电子学领域；特别是，单个电流源可同时用于诱导畴壁运动和产生自旋信号。
