论文标题

三端自旋设备中自旋中心的倾斜场磁化理论

Theory of oblique-field magnetoresistance from spin centers in three-terminal spintronic devices

论文作者

Harmon, Nicholas J., Flatté, Michael E.

论文摘要

我们提出了一个通用的随机Liouville电气传输理论,该理论跨越了两个导体之间的屏障,这是通过顺序跳过单个缺陷的Spin-0到Spin-1/2转变而发生的。我们发现磁性传统类似于Hanle特征(伪Hanle特征),该特征源自Pauli而无需自旋积累,并且还预测缺陷旋转的演变会改变常规的Hanle响应,从而产生倾向的Hanle信号从自旋中心进化中产生。我们提出了在倾斜磁场上的研究,这些研究将明确确定是否是由自旋中心辅助运输引起的磁电。

We present a general stochastic Liouville theory of electrical transport across a barrier between two conductors that occurs via sequential hopping through a single defect's spin-0 to spin-1/2 transition. We find magneto-conductances similar to Hanle features (pseudo-Hanle features) that originate from Pauli blocking without spin accumulation, and also predict that evolution of the defect's spin modifies the conventional Hanle response, producing an inverted Hanle signal from spin center evolution. We propose studies in oblique magnetic fields that would unambiguously determine if a magnetoconductance results from spin-center assisted transport.

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