一种输出自旋流的装置--自旋池

文章作者设计了一种能够给未来的自旋电路提供驱动自旋流的动力装置，即自旋池．该自旋池有如下四个基本特点：(1)有两个极能使自旋流从一个极流入，从另一个极流出，从而建立一个闭合的自旋回路；(2)有一个能量源；(3)能保持自旋相干；(4)能输出不附加任何净电荷流的纯自旋流，值得注意的是，该自旋池能通过现有的技术手段实现。

A spin cell for spin current

We propose and investigate a spin-cell device which provides the necessary spin-motive force to drive a spin current for future spintronic circuits. Our spin cell has four basic characteristics: (1) it has two poles with a spin current flowing in from one pole and out from the other, so that a complete spin circuit can be established; (2) it has a source of energy to drive the spin current; (3) it maintains spin coherence so that a sizable spin current can be delivered; (4) it drives a spin current without a net charge current. This cell should be realizable using technologies presently available.