Hyperfine interaction in graphene: The relevance for spintronics

Autor(en)

Balázs Dóra, Ferenc Simon

Abstrakt

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(en)

Elektronische Materialeigenschaften

Externe Organisation(en)

Budapest University of Technology and Economics

Journal

Physica Status Solidi. B: Basic Research

Band

247

Seiten

2935-2940

Anzahl der Seiten

6

ISSN

0370-1972

DOI

https://doi.org/10.1002/pssb.201000347

Publikationsdatum

2010

Peer-reviewed

Ja

ÖFOS 2012

103015 Kondensierte Materie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/e43984fd-3572-47e6-acf2-db8d5e3dc06f