Journal
PHYSICAL REVIEW B
Volume 83, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.83.085306
Keywords
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Funding
- FCT [PTDC/FIS/70843/2006]
- Polish Ministry of Science and Higher Education
- University of Basque Country UPV/EHU [GIU07/40]
- MCI of Spain [FIS2009-12773-C02-01]
- Grupos Consolidados UPV/EHU del Gobierno Vasco [IT-472-10]
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We consider spin effects related to the random spin-orbit interaction in graphene. Such a random interaction can result from the presence of ripples and/or other inhomogeneities at the graphene surface. We show that the random spin-orbit interaction generally reduces the spin dephasing (relaxation) time, even if the interaction vanishes on average. Moreover, the random spin-orbit coupling also allows for spinmanipulation with an external electric field. Because of the spin-flip interband as well as intraband optical transitions, the spin density can be effectively generated by a periodic electric field in a relatively broad range of frequencies.
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