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arXiv 1011.2697cond-mat.mes-hallcond-mat.mtrl-sci
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拓扑等离子体自旋整流器的建议

Proposal for a Topological Plasmon Spin Rectifier

Ian Appelbaum, H. D. Drew, M. S. Fuhrer

摘要:

我们提出了一个器件,其中自旋极化AC等离子体模式在表面状态的拓扑绝缘体纳米结构诱导一个静态的自旋积累在共振,正常的金属结构耦合到它。使用有限差分时域模型,我们模拟这种自旋泵机制的漂移,扩散,弛豫,和旋进在磁场。这种光学驱动系统可以作为自旋电子器件的直流“自旋电池”。

英文摘要:

We propose a device in which the spin-polarized AC plasmon mode in the surface state of a topological insulator nanostructure induces a static spin accumulation in a resonant, normal metal structure coupled to it. Using a finite-difference time-domain model, we simulate this spin-pump mechanism with drift, diffusion, relaxation, and precession in a magnetic field. This optically-driven system can serve as a DC "spin battery" for spintronic devices.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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