Abstract
Zigzag edges of the honeycomb structure of graphene exhibit magnetic polarization, making them attractive as building blocks for spintronic devices. Here, we show that devices with zigzag-edged triangular antidots perform essential spintronic functionalities, such as spatial spin splitting or spin filtering of unpolarized incoming currents. Near-perfect performance can be obtained with optimized structures. The device performance is robust against substantial disorder. The gate-voltage dependence of transverse resistance is qualitatively different for spin-polarized and spin-unpolarized devices, and can be used as a diagnostic tool. Importantly, the suggested devices are feasible within current technologies.
Originalsprog | Engelsk |
---|---|
Artikelnummer | 121406 |
Tidsskrift | Physical Review B |
Vol/bind | 95 |
Udgave nummer | 12 |
ISSN | 2469-9950 |
DOI | |
Status | Udgivet - 21 mar. 2017 |