Hyperfine interaction in graphene: The relevance for spintronics

Author(s)
Balázs Dóra, Ferenc Simon
Abstract

We study the nuclear magnetic resonance (NMR) properties of graphene. The interaction between nuclear spins and the orbital motion of Dirac electrons is strongly modified by the linear electronic dispersion with respect to its canonical form. The NMR shift and spin-lattice relaxation time are calculated as function of temperature, chemical potential, and magnetic field for clean and impure graphene, and three distinct regimes are identified: Fermi-, Dirac-gas, and extreme quantum limit (EQL) behaviors. A critical spectrometer assessment shows that NMR is within reach for fully 13C enriched graphene of reasonable size.

Organisation(s)
Electronic Properties of Materials
External organisation(s)
Budapest University of Technology and Economics
Journal
Physica Status Solidi. B: Basic Research
Volume
247
Pages
2935-2940
No. of pages
6
ISSN
0370-1972
DOI
https://doi.org/10.1002/pssb.201000347
Publication date
2010
Peer reviewed
Yes
Austrian Fields of Science 2012
103015 Condensed matter
Portal url
https://ucrisportal.univie.ac.at/en/publications/e43984fd-3572-47e6-acf2-db8d5e3dc06f