Abstract
Recent progress in fine processing technology enables us to fabricate graphene devices. In this article, we show how the graphene edges and their shape crucially affect the physical properties of nano-graphene and related systems. The crossover of magnetism from low-temperature paramagnetic to high-temperature diamagnetic behavior, the electronic current control due to graphene edge engineering and the presence of a perfectly conducting channel in disordered graphene nanoribbons are discussed. [TANSO 2010 (No. 243) 116–120.]
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