Proposal for a topological plasmon spin rectifier

被引:37
作者
Appelbaum, Ian [1 ]
Drew, H. D.
Fuhrer, M. S.
机构
[1] Univ Maryland, Dept Phys, College Pk, MD 20742 USA
关键词
9;
D O I
10.1063/1.3541545
中图分类号
O59 [应用物理学];
学科分类号
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. (c) 2011 American Institute of Physics. [doi:10.1063/1.3541545]
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页数:3
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