Interplay between edge and bulk states in silicene nanoribbon
arXiv:1305.3684 · doi:10.1063/1.4808367
Abstract
We investigate the interplay between the edge and bulk states, induced by the Rashba spin-orbit coupling, in a zigzag silicene nanoribbon in the presence of an external electric field. The interplay can be divided into two kinds, one is the interplay between the edge and bulk states with opposite velocities, and the other is that with the same velocity direction. The former can open small direct spin-dependent subgaps. A spin-polarized current can be generated in the nanoribbon as the Fermi energy is in the subgaps. While the later can give rise to the spin precession in the nanoribbon. Therefore, the zigzag silicene nanoribbon can be used as an efficient spin filter and spin modulation device.
5 pages, 4 figures
References in corpus (5)
- Electric Field Effect in Atomically Thin Carbon Films
- Valley-Polarized Metals and Quantum Anomalous Hall Effect in Silicene
- Spontaneous Symmetry Breaking and Dynamic Phase Transition in Monolayer Silicene
- Quantum spin Hall effect induced by electric field in silicene
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Cited by in corpus (4)
- Thermoelectric effects in silicene nanoribbons
- Spin effects in thermoelectric properties of Al and P doped zigzag silicene nanoribbons
- Topological phase and edge states dependence of the RKKY interaction in zigzag silicene nanoribbon
- Protected edge states in silicene antidots and dots in magnetic field