Abstract.
We consider two mechanisms of spin relaxation in disordered graphene. i) Spin relaxation due to curvature spin orbit coupling caused by ripples. ii) Spin relaxation due to the interaction of the electronic spin with localized magnetic moments at the edges. We obtain analytical expressions for the spin relaxation times τSO and τJ due to both mechanisms and estimate their values for realistic parameters of graphene samples. We obtain that spin relaxation originating from these mechanisms is very weak and spin coherence is expected in disordered graphene up to samples of length \({\L\sim 10\,\mu m}\).
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References
K.S. Novoselov et al., Science 306, 666 (2004); Nature 438, 197 (2005)
Y. Zhang et al., Nature 438, 201 (2005)
A good review of the present activity should be these Proceedings
S.V. Morozov et al., Phys. Rev. Lett. 97, 016801 (2006)
D. Huertas-Hernando et al., Phys. Rev. B 74, 155426 (2006)
T. Stauber et al., Phys. Rev. B 71, 041406(R) (2005)
M.A.H. Vozmediano et al., Phys. Rev. B 72, 155121 (2005)
N.M.P. Peres et al., Phys. Rev. B 72, 174406 (2005)
C.L. Kane et al., Phys. Rev. Lett. 95, 146802 (2005)
E. Rotenberg (private communication); T. Ohta et al., cond-mat/0612173 (2006)
E. McCann et al., Phys. Rev. Lett. 97, 146805 (2006)
D.A. Abanin et al., Phys. Rev. Lett. 96, 176803 (2006)
A.H. Castro Neto et al., cond-mat/0608543 (2006)
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Huertas-Hernando, D., Guinea, F. & Brataas, A. Spin relaxation times in disordered graphene. Eur. Phys. J. Spec. Top. 148, 177–181 (2007). https://doi.org/10.1140/epjst/e2007-00238-0
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DOI: https://doi.org/10.1140/epjst/e2007-00238-0