Interplay between edge and bulk states in silicene nanoribbon
Mesoscale and Nanoscale Physics
2015-06-15 v1
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.
Cite
@article{arxiv.1305.3684,
title = {Interplay between edge and bulk states in silicene nanoribbon},
author = {Xing-Tao An and Yan-Yang Zhang and Jian-Jun Liu and Shu-Shen Li},
journal= {arXiv preprint arXiv:1305.3684},
year = {2015}
}
Comments
5 pages, 4 figures