Realization of ferromagnetic graphene oxide with high magnetization by doping graphene oxide with nitrogen
Open Access
- 2 September 2013
- journal article
- research article
- Published by Springer Science and Business Media LLC in Scientific Reports
- Vol. 3 (1), srep02566
- https://doi.org/10.1038/srep02566
Abstract
The long spin diffusion length makes graphene very attractive for novel spintronic devices, and thus has triggered a quest for integrating the charge and spin degrees of freedom. However, ideal graphene is intrinsic non-magnetic, due to a delocalized π bonding network. Therefore, synthesis of ferromagnetic graphene or its derivatives with high magnetization is urgent due to both fundamental and technological importance. Here we report that N-doping can be an effective route to obtain a very high magnetization of ca. 1.66 emu/g, and can make graphene oxide (GO) to be ferromagnetism with a Curie-temperature of 100.2 K. Clearly, our findings can offer the easy realization of ferromagnetic GO with high magnetization, therefore, push the way for potential applications in spintronic devices.Keywords
This publication has 50 references indexed in Scilit:
- Structural and magnetic properties of iron in graphiteCarbon, 2013
- Indirect Exchange and Ruderman–Kittel–Kasuya–Yosida (RKKY) Interactions in Magnetically-Doped GrapheneCrystals, 2013
- Nitrogen-doped graphene nanosheets as anode materials for lithium ion batteries: a first-principles studyJournal of Materials Chemistry, 2012
- Irradiation enhanced paramagnetism on graphene nanoflakesApplied Physics Letters, 2011
- Functionalized Graphene for High-Performance Two-Dimensional Spintronics DevicesACS Nano, 2011
- Properties of Fluorinated Graphene FilmsNano Letters, 2010
- Thermal desorption of hydrogen from graphaneTechnical Physics Letters, 2010
- Nitrogen-Doped Carbon Nanotube Arrays with High Electrocatalytic Activity for Oxygen ReductionScience, 2009
- Detection of individual gas molecules adsorbed on grapheneNature Materials, 2007
- Nitrogen in graphite and carbon nanotubes: Magnetism and mobilityPhysical Review B, 2005