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Spin Currents in Rough Graphene Nanoribbons: Universal Fluctuations and Spin Injection
Wimmer, Michael
, Adagideli, İnanç , Berber, Savaş, Tomanek, David and Richter, Klaus
(2008)
Spin Currents in Rough Graphene Nanoribbons: Universal Fluctuations and Spin Injection.
Physical Review Letters (PRL) 100 (17), pp. 177207-1.
Date of publication of this fulltext: 05 Aug 2009 13:40
Article
DOI to cite this document: 10.5283/epub.2577
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 ...
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.
Involved Institutions
Details
| Item type | Article | ||||||||||
| Journal or Publication Title | Physical Review Letters (PRL) | ||||||||||
| Publisher: | AMER PHYSICAL SOC | ||||||||||
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| Place of Publication: | COLLEGE PK | ||||||||||
| Volume: | 100 | ||||||||||
| Number of Issue or Book Chapter: | 17 | ||||||||||
| Page Range: | pp. 177207-1 | ||||||||||
| Date | 2 May 2008 | ||||||||||
| Institutions | Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter | ||||||||||
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| Classification |
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| Keywords | QUANTUM TRANSPORT; ROOM-TEMPERATURE; LOCALIZATION; CARBON; STATE; EDGE; | ||||||||||
| Dewey Decimal Classification | 500 Science > 530 Physics | ||||||||||
| Status | Published | ||||||||||
| Refereed | Yes, this version has been refereed | ||||||||||
| Created at the University of Regensburg | Yes | ||||||||||
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-25770 | ||||||||||
| Item ID | 2577 |
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