2005 Volume 74 Issue 2 Pages 192-195
Nanographene is defined as a carbon-based nanosized flat π-electron system having open edges, which is contrasted to closed π-electron systems of fullerenes and carbon nanotubes. An arbitrarily shaped nanographene can be described in terms of a combination of zigzag and armchair edges. The zigzag edges of nanographene exhibit a nonbonding π-electron state (edge state) of edge origin, which contributes to the production of unconventional nanomagnetism. In the disordered network of nanographite domains, the spin-glass state is stabilized. The magnetic switching phenomenon of edge state spins is observed in the water adsorption process in the nanographite network. In this article, the preparation and structure of nanographene are also reviewed in addition to the anomalous electronic and magnetic properties of nanographene and nanographite.
