Wimmer, Michael and Adagideli, Inanc and Berber, Savas and Tomanek, David and Richter, Klaus (2008) Spin currents in rough graphene nanoribbons: Universal fluctuations and spin injection. PHYSICAL REVIEW LETTERS, 100 (17): 177207. ISSN 0031-9007, 1079-7114
Full text not available from this repository. (Request a copy)Abstract
We investigate spin conductance in zigzag graphene nanoribbons and propose a spin injection mechanism based only on graphitic nanostructures. We find that nanoribbons with atomically straight, symmetric edges show zero spin conductance but nonzero spin Hall conductance. Only nanoribbons with asymmetrically shaped edges give rise to a finite spin conductance and can be used for spin injection into graphene. Furthermore, nanoribbons with rough edges exhibit mesoscopic spin conductance fluctuations with a universal value of rmsG(s)approximate to 0.4e/4 pi.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | QUANTUM TRANSPORT; ROOM-TEMPERATURE; LOCALIZATION; CARBON; STATE; EDGE; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 03 Nov 2020 06:36 |
| Last Modified: | 03 Nov 2020 06:36 |
| URI: | https://pred.uni-regensburg.de/id/eprint/30911 |
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