新型材料——单原子石墨膜

graphene 是按蜂房结构密集排列的单原子层碳薄膜二维材料。它的π键（价带）与π*键（导带），在蜂房结构晶格布里渊区顶角两个不等价点互相接触。荷电载流子显现极高的本征迁移率，在室温下，能在亚微米距离弹道运行而不受到散射。它是世界上最薄的电子材料，可制备超高频晶体管。文章分析了近年对graphene材料的研究和应用情况，试图探索今后的发展方向，还讨论了graphene的中文译名。

Novel Material—Graphene

Graphene is a two dimensional material, merely one atom thick sheet of carbon arranged laterally in a honeycomb lattice. Its π valence band and π* conduction band touch at two in equivalent points in the honeycomb lattice Brillouin zone. In graphene, charge carriers exhibit giant intrinsic mobility and can travel ballistically over submicrons without scattering at room temperature. It is the thinnest electronic material and can be used to enable transistors operating at very high frequencies. This review analyzes trends in graphene research and applications, and attempts to identify future directions.