Precessing magnetization is known to generate and inject pure spin currents to adjacent materials by the spin pumping effect. However, the generation of the pure spin current is the only case of the spin pumping at the spin-conserving interface. The charge current is usually accompanied by the usual spin pumping effect at the spin-nonconserving interface in general. In this paper, we consider systems where spin can be scattered and flipped by the Elliott-Yafet-like process at interfaces. For these systems, we investigate the interface-generated charge pumping by using the adiabatic quantum pumping theory. We present the analytic expressions for this pumped charge current in terms of the generalized mixing conductances. For the system that we consider, we find interestingly that the connection between the spin pumping effects and magnetoelectronic circuit theory, which has been demonstrated for the spin-conserving systems, can be extended in spin-nonconserving interfaces, and we show that the pumped charge current generated from the interfacial spin-flip potential can be understood in the context of the generalized spin conductance tensors suggested from the generalized magnetoelectronic circuit theory. We also compare the pumped charge current with other mechanisms that generate a charge current or electric voltage in the presence of the precessing magnetization.

中文翻译：

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界面自旋翻转产生的电荷泵

已知通过自旋泵浦效应使进动的磁化产生纯的自旋电流并将其注入到相邻的材料中。然而，纯自旋电流的产生是在自旋保持界面处自旋泵浦的唯一情况。通常，电荷电流通常在自旋非保守界面处伴随有通常的自旋泵浦效应。在本文中，我们考虑了可以通过界面处类似Elliott-Yafet的过程分散和翻转自旋的系统。对于这些系统，我们使用绝热量子泵浦理论来研究界面产生的电荷泵浦。我们根据广义混合电导率给出了这种抽运电荷电流的解析表达式。对于我们考虑的系统，我们有趣地发现，自旋泵浦效应与磁电子电路理论之间的联系已在自旋非守恒界面中得到扩展，该关系已在自旋守恒系统中得到了证明，并且证明了自旋界面产生的抽运电荷电流翻转电位可以在广义磁电子电路理论提出的广义自旋电导张量的背景下理解。我们还将抽运的充电电流与其他在发生过分磁化的情况下产生充电电流或电压的机制进行比较。并且我们表明，可以根据广义磁电子电路理论提出的广义自旋电导张量来理解由界面自旋翻转电势产生的抽运电荷电流。我们还将抽运的充电电流与其他在发生过分磁化的情况下产生充电电流或电压的机制进行比较。并且我们表明，可以根据广义磁电子电路理论提出的广义自旋电导张量来理解由界面自旋翻转电势产生的抽运电荷电流。我们还将抽运的充电电流与其他在发生过分磁化的情况下产生充电电流或电压的机制进行比较。