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Spin Transport in Rough Graphene Nanoribbons

Wimmer, Michael and Adagideli, Inanc and Berber, Savas and Tomanek, David and Richter, Klaus (2008) Spin Transport in Rough Graphene Nanoribbons. Physical Review Letters (PRL) 100, pp. 177207-1.

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Other URL: http://link.aps.org/doi/10.1103/PhysRevLett.100.177207

Abstract

We investigate spin conductance in zigzag graphene nanoribbons and propose a spin injection method based only on graphene. Combining density functional theory with tight-binding transport calculations, we find that nanoribbons with asymmetrically shaped edges show a non-zero spin conductance and can be used for spin injection. Furthermore, nanoribbons with rough edges exhibit mesoscopic spin conductance fluctuations with a universal value of $rms G_s = 0.4 e/4\\pi$.

Item Type:Article
Institutions: Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter
Projects:SFB 689: Spinphänomene in reduzierten Dimensionen
Identification Number:
ValueType
0709.3244arXiv ID
Related URLs:
URLURL Type
http://arxiv.org/abs/0709.3244Preprint
Subjects:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Owner:Timo Hartmann
Deposited On:15 Nov 2007
Last Modified:05 Aug 2009 15:40
Item ID:2577
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