Proposal for a Topological Plasmon Spin Rectifier
arXiv:1011.2697 · doi:10.1063/1.3541545
Abstract
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.
Eq. 1 corrected; Figs 3 and 4 updated