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Pàgina inicial > Articles > Articles publicats > Nanostructured graphene for spintronics |
Data: | 2017 |
Resum: | 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. |
Ajuts: | European Commission 665919 Ministerio de Economía y Competitividad SEV-2013-0295 |
Nota: | Altres ajuts: The Center for Nanostructured Graphene (CNG) is sponsored by the Danish National Re- search Foundation, Project DNRF103. |
Drets: | Tots els drets reservats. |
Llengua: | Anglès |
Document: | Article ; recerca ; Versió acceptada per publicar |
Matèria: | Spin filtering ; Spin polarization ; Transport properties |
Publicat a: | Physical review B, Vol. 95, issue 12 (March 2017) , art. 121406, ISSN 2469-9969 |
Postprint 10 p, 3.6 MB |