Origin and Control of Spin Currents in a Magnetic Triplet Josephson Junction(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
Origin and Control of Spin Currents in a Magnetic Triplet Josephson Junction(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
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DOI：
10.1143/jpsj.77.103714
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发表时间：
2008-05
影响因子：
1.7
通讯作者：
P. Brydon;D. Manske;M. Sigrist
中科院分区：
文献类型：
--
作者：
P. Brydon;D. Manske;M. Sigrist
我们研究了具有磁活性隧道势垒的模型三重态超导结中约瑟夫森自旋电流的出现。我们发现了产生自旋电流的三种不同机制，并对每种机制的对称性和物理起源进行了详细讨论。通过结合这三种基本机制，我们发现可以对自旋电流进行精细控制。特别是，我们表明，与充电电流不同，势垒两侧的自旋电流不必相同。
We study the appearance of a Josephson spin current in a model triplet superconductor junction with a magnetically-active tunneling barrier. We find three distinct mechanisms for producing a spin current, and we provide a detailed discussion of the symmetry properties and the physical origins of each. By combining these three basic mechanisms, we find that it is possible to exercise fine control over the spin currents. In particular, we show that unlike the charge current, the spin currents on either side of the barrier need not be identical.