Eur. Phys. J. Special Topics 148, 177-181 (2007)
https://doi.org/10.1140/epjst/e2007-00238-0

Spin relaxation times in disordered graphene

¹ Department of Physics, Norwegian University of Science and Technology, 7491 Trondheim, Norway
² Centre for Advanced Study, Drammensveien 78, 027 Oslo, Norway
³ Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049 Madrid, Spain

Corresponding author: danielhh@ntnu.no

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 τ_SO and τ_J 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 .